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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#394587#7751. Palindrome PathlfxxxAC ✓1ms4080kbC++174.1kb2024-04-20 16:29:342024-04-20 16:29:34

Judging History

你现在查看的是最新测评结果

  • [2024-04-20 16:29:34]
  • 评测
  • 测评结果:AC
  • 用时:1ms
  • 内存:4080kb
  • [2024-04-20 16:29:34]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(x) (x).begin(), (x).end()
bool be;
constexpr int N = 35;
int n, m, x, y, xx, yy;
char pre[N][N];
char a[N][N];
bool vis[N][N];
string s, ans;
#define ck(x, y) (1 <= x && x <= n && 1 <= y && y <= m && !vis[x][y])
void dfs(int x, int y)
{
	vis[x][y] = 1;
	if (ck(x + 1, y)) {
		ans += "U";
		dfs(x + 1, y);
		ans += "D";
	}
	if (ck(x - 1, y)) {
		ans += "D";
		dfs(x - 1, y);
		ans += "U";
	}
	if (ck(x, y + 1)) {
		vis[x][y + 1] = 1;
		ans += "L";
		dfs(x, y + 1);
		ans += "R";
	}
	if (ck(x, y - 1)) {
		vis[x][y - 1] = 1;
		ans += "R";
		dfs(x, y - 1);
		ans += "L";
	}
}
void D()
{
	int d = 0;
	while (a[x - d - 1][y] == '1' && a[xx + d + 1][yy] == '1') ++d;
	if (a[xx + d + 1][yy] == '1') {
		for (int i = 0; i <= d; ++i) ans += 'U';
		for (int i = 0; i <= d; ++i) ans += 'D';
	} else {
		for (int i = 1; i <= d; ++i) ans += 'U';
		for (int i = 0; i <= d; ++i) ans += 'D';
	}
}
void U()
{
	int d = 0;
	while (a[x + d + 1][y] == '1' && a[xx - d - 1][yy] == '1') ++d;
	if (a[xx - d - 1][yy] == '1') {
		for (int i = 0; i <= d; ++i) ans += 'D';
		for (int i = 0; i <= d; ++i) ans += 'U';
	} else {
		for (int i = 1; i <= d; ++i) ans += 'D';
		for (int i = 0; i <= d; ++i) ans += 'U';
	}
}
void R()
{	int d = 0;
//	cerr << x << ' ' << y << '\n';
	while (a[x][y - d - 1] == '1' && a[xx][yy + d + 1] == '1') ++d;
	if (a[xx][yy + d + 1] == '1') {
		for (int i = 0; i <= d; ++i) ans += 'L';
		for (int i = 0; i <= d; ++i) ans += 'R';
	} else {
		for (int i = 1; i <= d; ++i) ans += 'L';
		for (int i = 0; i <= d; ++i) ans += 'R';
	}
}
void L()
{
	int d = 0;
	while (a[x][y + d + 1] == '1' && a[xx][yy - d - 1] == '1') ++d;
	if (a[xx][yy - d - 1] == '1') {
		for (int i = 0; i <= d; ++i) ans += 'R';
		for (int i = 0; i <= d; ++i) ans += 'L';
	} else {
		for (int i = 1; i <= d; ++i) ans += 'R';
		for (int i = 0; i <= d; ++i) ans += 'L';
	}
}
void bfs()
{
	queue<pii>q;
	q.emplace(x, y);
	vis[x][y] = 1;
	while (!q.empty()) {
		auto [x, y] = q.front();
		q.pop();
		if (ck(x + 1, y)) {
			vis[x + 1][y] = 1;
			pre[x + 1][y] = 'D';
			q.emplace(x + 1, y);
		}
		if (ck(x - 1, y)) {
			vis[x - 1][y] = 1;
			pre[x - 1][y] = 'U';
			q.emplace(x - 1, y);
		}
		if (ck(x, y + 1)) {
			vis[x][y + 1] = 1;
			pre[x][y + 1] = 'R';
			q.emplace(x, y + 1);
		}
		if (ck(x, y - 1)) {
			vis[x][y - 1] = 1;
			pre[x][y - 1] = 'L';
			q.emplace(x, y - 1);
		}
	}
}
bool en;
int main() {
	cerr << (&be - &en) / 1024.0 / 1024 << " MB\n--------------------------------" << endl;
#ifdef IAKIOI
	freopen("in.in", "r", stdin);
//	freopen("out.out", "w", stdout);
#endif
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cin >> n >> m;
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) {
			cin >> a[i][j];
			if (a[i][j] == '0') vis[i][j] = 1;
		}
	}
	cin >> x >> y >> xx >> yy;
	dfs(xx, yy);
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) {
			if (a[i][j] == '1' && !vis[i][j]) {
				cout << "-1\n";
				return 0;
			}
		}
	}
	for (char c : ans) {
		if (c == 'U') {
			if (a[x - 1][y] == '1') --x;
		} else if (c == 'D') {
			if (a[x + 1][y] == '1') ++x;
		} else if (c == 'R') {
			if (a[x][y + 1] == '1') ++y;
		} else {
			if (a[x][y - 1] == '1') --y;
		}
	}
//	cerr << ans << endl;
//	ans = "";
	memset(vis, 0, sizeof vis);
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) {
			if (a[i][j] == '0') vis[i][j] = 1;
		}
	}
	bfs();
	int X = xx, Y = yy;
	while (xx != x || yy != y) {
		s += pre[xx][yy];
		if (pre[xx][yy] == 'D') --xx;
		else if (pre[xx][yy] == 'U') ++xx;
		else if (pre[xx][yy] == 'R') --yy;
		else ++yy;
	}
	xx = X, yy = Y;
	reverse(all(s));
//	cerr << x << ' ' << y << ' ' << xx << ' ' << yy << '\n';
//	cerr << s << endl;
	for (char c : s) {
		if (c == 'D') D(), ++x;
		else if (c == 'U') U(), --x;
		else if (c == 'R') R(), ++y;
		else L(), --y;
	}
	cout << ans;
	reverse(all(ans));
	cout << ans << endl;
	return 0;
}

这程序好像有点Bug,我给组数据试试?

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3996kb

input:

2 2
11
11
1 1 2 2

output:

DRUDLUDRRDULDURD

result:

ok Valid Solution (Length = 16).

Test #2:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

2 2
10
01
1 1 2 2

output:

-1

result:

ok No Solution.

Test #3:

score: 0
Accepted
time: 1ms
memory: 3832kb

input:

1 1
1
1 1 1 1

output:



result:

ok Valid Solution (Length = 0).

Test #4:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

5 4
1111
1111
1111
1111
1111
4 2 4 2

output:

ULDDDDLUUUUDDDDRRUURUUDDDDUULDDLUUUURDUDDUDDRLLLLRDDUDDUDRUUUULDDLUUDDDDUURUURRDDDDUUUULDDDDLU

result:

ok Valid Solution (Length = 94).

Test #5:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

5 5
11111
10101
11111
10101
11111
1 4 5 5

output:

DDDDRRUUUULRRRDDDDLRUULRUULLDDLRDDLLUUUUDDDDRRRRRRRRDDDDUUUULLDDRLDDLLUURLUURLDDDDRRRLUUUURRDDDD

result:

ok Valid Solution (Length = 96).

Test #6:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

5 3
111
100
111
001
111
4 3 3 2

output:

LUURRLLDDRRDDLLRRUULLUURRLLDDRRDDLLRRUUL

result:

ok Valid Solution (Length = 40).

Test #7:

score: 0
Accepted
time: 0ms
memory: 3776kb

input:

5 4
1001
1101
1111
0011
0010
2 2 1 1

output:

UULDULUUDLDDDUUURDRRDDULUULUDDRRDRUUUDDDLDUULUDLUU

result:

ok Valid Solution (Length = 50).

Test #8:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

5 3
101
111
100
111
100
4 1 2 2

output:

LDURRUUUDLLRRDDDULRLLUULRRLUULLRLUDDDRRLLDUUURRUDL

result:

ok Valid Solution (Length = 50).

Test #9:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

5 5
01110
10110
11110
11011
11100
2 4 5 1

output:

DDDULUULRDDLDDLUUULRDDDRRLUURRUUDDLLDDLLDDLLDDUURRUULRRDDDRLUUULDDLDDRLUULUDDD

result:

ok Valid Solution (Length = 78).

Test #10:

score: 0
Accepted
time: 1ms
memory: 3888kb

input:

5 3
011
111
110
111
011
3 1 2 1

output:

UULULDURDDDDLUDRUUURDDULUULLUULUDDRUUURDULDDDDRUDLULUU

result:

ok Valid Solution (Length = 54).

Test #11:

score: 0
Accepted
time: 1ms
memory: 3884kb

input:

4 5
11111
11111
11111
11111
3 2 1 3

output:

UUULDDDLUUUDDDRUUURRDDDRUUUDDDLUUULDDDUUUUUUDDDLUUULDDDUUURDDDRRUUURDDDUUULDDDLUUU

result:

ok Valid Solution (Length = 82).

Test #12:

score: 0
Accepted
time: 0ms
memory: 3928kb

input:

5 5
11111
10101
11111
10101
11111
2 5 1 1

output:

UUUULLDDDDLLUUUURLDDRLDDRRRLUURLUURRDDDDUUUULLLLLLLLUUUUDDDDRRUULRUULRRRDDLRDDLRUUUULLDDDDLLUUUU

result:

ok Valid Solution (Length = 96).

Test #13:

score: 0
Accepted
time: 0ms
memory: 3928kb

input:

4 5
11111
10000
11111
00001
1 3 4 5

output:

DRRRRDDLLLLRRRRUULLLLUDDRRRRDDRRRRDDULLLLUURRRRLLLLDDRRRRD

result:

ok Valid Solution (Length = 58).

Test #14:

score: 0
Accepted
time: 0ms
memory: 3776kb

input:

3 5
10100
00010
00111
1 3 1 1

output:

-1

result:

ok No Solution.

Test #15:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

4 5
10001
11111
11100
11111
4 5 3 1

output:

ULDDLUULLRRDDLLDURRRRDULUURDLLLLDRUULUDRRRRUDLLDDRRLLUULDDLU

result:

ok Valid Solution (Length = 60).

Test #16:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

3 5
11111
10100
11111
1 2 3 5

output:

RRDDLLRRRRUULRDDLLUULLDDRRRRRRRRDDLLUULLDDRLUURRRRLLDDRR

result:

ok Valid Solution (Length = 56).

Test #17:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

4 5
01110
10101
11011
10111
1 3 2 3

output:

-1

result:

ok No Solution.

Test #18:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

5 5
11111
11111
11111
11111
11111
1 3 5 2

output:

DDDDLUUUULDDDDLUUUUDDDDRUUUURDDDDRRUUUUDDDDLUUUUDDDDRLLRLLLLRLLRDDDDUUUULDDDDUUUURRDDDDRUUUURDDDDUUUULDDDDLUUUULDDDD

result:

ok Valid Solution (Length = 116).

Test #19:

score: 0
Accepted
time: 0ms
memory: 3892kb

input:

5 5
11111
10101
11111
10101
11111
5 1 2 3

output:

UUULLDDDDRRRRUUUULRDDLRDDLLLLUURLUURRDDDDUUDUUUUDUUDDDDRRUULRUULLLLDDRLDDRLUUUURRRRDDDDLLUUU

result:

ok Valid Solution (Length = 92).

Test #20:

score: 0
Accepted
time: 0ms
memory: 3864kb

input:

5 5
11111
10000
11111
00001
11111
4 5 5 3

output:

LLDDRRRRDDLLLLRRRRUULLLLUURRRRLLRRLLLRRLLLDDLRLLRRLLRRRLLRRRDDRLRRLLLLRRLRDDRRRLLRRRLLRRLLRLDDLLLRRLLLRRLLRRRRUULLLLUURRRRLLLLDDRRRRDDLL

result:

ok Valid Solution (Length = 136).

Test #21:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

5 5
01010
10101
10101
11001
10011
4 1 5 4

output:

-1

result:

ok No Solution.

Test #22:

score: 0
Accepted
time: 0ms
memory: 3780kb

input:

5 5
10101
11111
10101
11111
11111
3 1 2 4

output:

LUUURDRURDRUDDDDULLUDDURRUULULDLULDDDDURLRRUULRRRRLUURRLRUDDDDLULDLULUURRUDDULLUDDDDURDRURDRUUUL

result:

ok Valid Solution (Length = 96).

Test #23:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

5 5
00001
11111
01110
01111
01111
1 5 5 2

output:

DDDLUUULDDDLDURUULUDRURDDDRRLUUUDDDLLLLDDDUUULRRDDDRURDULUURUDLDDDLUUULDDD

result:

ok Valid Solution (Length = 74).

Test #24:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

5 5
01011
10111
11011
10101
01110
4 1 2 3

output:

-1

result:

ok No Solution.

Test #25:

score: 0
Accepted
time: 0ms
memory: 3892kb

input:

10 8
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
11111111
7 7 3 6

output:

UUUUUUULDDDDDDDDDLUUUUUUUUUDDDDDDDDDRRURUUUUUUUURDDDDDDDDDLRRUUUUUUUUURDDDDDDDDDRUUUUUUUUUDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDLDLUUUUUUUUURDDDDDDDDDUUUDDUUUDDUUUDDUUUDDUUULLRRRLLRRRLLRRRRRRLLRRRLLRRRLLUUUDDUUUDDUUUDDUUUDDUUUDDDDDDDDDRUUUUUUUUULDLDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDD...

result:

ok Valid Solution (Length = 396).

Test #26:

score: 0
Accepted
time: 0ms
memory: 3832kb

input:

10 6
111111
101010
111111
101010
111111
101010
111111
101010
111111
101010
1 6 2 3

output:

UUUUUUUUDLLUDDDDDDDDDLRRRRRUUUUUUUUUDLRDDLRDDLRDDLRDDLLLLUULRRLUULRRLUULRRLUULRRRDDDDDDDLUDDULDDDDDDDRRRLUULRRLUULRRLUULRRLUULLLLDDRLDDRLDDRLDDRLDUUUUUUUUURRRRRLDDDDDDDDDULLDUUUUUUUU

result:

ok Valid Solution (Length = 182).

Test #27:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
5 5 5 2

output:

LLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLRLLRLLRLLRLLRLLRLLRLLLLRLLRLLRLLRLLRLLRLLRLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLL

result:

ok Valid Solution (Length = 258).

Test #28:

score: 0
Accepted
time: 1ms
memory: 3776kb

input:

10 10
1010110101
0000011010
1001001001
0011111000
1000111100
1011101001
1100110011
0110001011
0011111000
0101011101
7 5 4 3

output:

-1

result:

ok No Solution.

Test #29:

score: 0
Accepted
time: 1ms
memory: 3828kb

input:

10 6
100100
111111
100001
111111
101111
111111
101010
111111
111100
111111
6 5 7 3

output:

UUULDDLDDDDLUUDDDDRRDURRRUUUUUUUULDDUURDDDDLLDDLUUDDRRLUURRDDDDDULLLLLUURUUUULRRUULLRRRDDDUUUDDDDUUUDDDDRRUUUDDDDDDUUURRDDDDUUUDDDDUUUDDDRRRLLUURRLUUUURUULLLLLUDDDDDRRUULRRDDUULDDLLDDDDRUUDDLUUUUUUUURRRUDRRDDDDUULDDDDLDDLUUU

result:

ok Valid Solution (Length = 224).

Test #30:

score: 0
Accepted
time: 1ms
memory: 3820kb

input:

10 8
11111110
11110111
01111111
11111101
11011101
11111111
11111011
11011101
11001111
11111110
7 1 2 1

output:

DLUUUUUUUUULLLDDDDDDDLUUULULUURURDDUULDLDDDDDDDRUDDRUDRRUUUUUUUDRDULDDDRDDDUUULDDDLLLULUUUUURDRDDDRUUUUUUURRRRDDDDDDUUUUUULDDDDDDDDDRULDUDUUDUULLDUULLLLLLUUDLLUUDUUDUDLURDDDDDDDDDLUUUUUUDDDDDDRRRRUUUUUUURDDDRDRUUUUULULLLDDDLUUUDDDRDDDLUDRDUUUUUUURRDURDDURDDDDDDDLDLUUDDRURUULULUUULDDDDDDDLLLUUUUUUUUULD

result:

ok Valid Solution (Length = 302).

Test #31:

score: 0
Accepted
time: 1ms
memory: 3780kb

input:

10 10
1111011101
1110111110
1111011111
1011101111
0101010111
1110111111
0111010111
1011111011
0111010101
1011111110
2 6 7 4

output:

-1

result:

ok No Solution.

Test #32:

score: 0
Accepted
time: 0ms
memory: 4060kb

input:

8 10
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
8 10 6 10

output:

UURDDDDDDDLUUUUDDDDRRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDUUDDDUUDDDUUDDDRRRRRRRRRRRRRRRRRRDDDUUDDDUUDDDUUDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUUDDDDDDDRUUUUUUURDDDD...

result:

ok Valid Solution (Length = 364).

Test #33:

score: 0
Accepted
time: 0ms
memory: 3896kb

input:

10 10
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
3 5 9 1

output:

UDDDDDDDDDLLUUUUUUUUUDLLUDDDDDDDDDLLUUUUUUUUUDLLUDDDDDDDDDLRRLUULRRLUULRRLUULRRLUULRRRRLDDRLDDRLDDRLDDRRRLUURLUURLUURLUURRRLDDRLDDRLDDRLDDRRUUUUUUUUUDDUDDUDDUDDUDDUDDUDDLLLLLLLLDDUDDUDDUDDUDDUDDUDDUUUUUUUUURRDDLRDDLRDDLRDDLRRRUULRUULRUULRUULRRRDDLRDDLRDDLRDDLRRRRLUULRRLUULRRLUULRRLUULRRLDDDDDDDDDULL...

result:

ok Valid Solution (Length = 346).

Test #34:

score: 0
Accepted
time: 0ms
memory: 3956kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
5 4 7 2

output:

LLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULRLLRLLRLLRLLRLLRLLRLLLLRLLRLLRLLRLLRLLRLLRLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLL

result:

ok Valid Solution (Length = 258).

Test #35:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

9 10
1111001000
1110010111
0001001000
0101000101
1101000001
0111100110
0010010000
0001001000
1011001101
2 8 5 2

output:

-1

result:

ok No Solution.

Test #36:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

5 10
1001011101
1111111111
1000011001
1111111111
1101110010
4 3 4 7

output:

DDDLULLUURUDRLLDDDURRDRRUUUURDRUDRRURDDDDULLLDULRRRRUUULDLLLULDDDDLUUUDDDLRLLRRLLLRRRLLLRRRRLLLRRRRLLLRRRRRRRRLLLRRRRLLLRRRRLLLRRRLLLRRLLRLDDDUUULDDDDLULLLDLUUURRRRLUDLLLUDDDDRURRDURDRUUUURRDRRUDDDLLRDURUULLULDDD

result:

ok Valid Solution (Length = 212).

Test #37:

score: 0
Accepted
time: 1ms
memory: 3772kb

input:

7 10
1111111001
1111101110
1111011111
1101011101
1111011111
1111001011
1111111011
7 10 7 2

output:

-1

result:

ok No Solution.

Test #38:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

9 10
0101011101
1111111111
0101111111
1111111111
1111110101
1011111111
1101111101
1111111011
1101011111
3 7 7 10

output:

UURDURRDDDLUDDDDDDRUUURUUUUUDRDDDDDDLUDDURRUUUUUUUDRRURDDDDDLULUDDURDDDDULRRLUURUUULRUULDLLDDDDDDDULUUUUUULDDDDLDDDLULUULUURLDDDDDUUURDDRUUUURUUULLLDDUUDDDUUDDDUUDDDRRRRUUDDDDDDUURRRRDDDUUDDDUUDDDUUDDLLLUUURUUUURDDRUUUDDDDDLRUULUULULDDDLDDDDLUUUUUULUDDDDDDDLLDLUURLUUURUULRRLUDDDDRUDDULULDDDDDRURRDUU...

result:

ok Valid Solution (Length = 348).

Test #39:

score: 0
Accepted
time: 1ms
memory: 4076kb

input:

10 10
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
1111111111
9 5 3 2

output:

UUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUUDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRRURUUUUUUUUDDDDDDDDDULDLUUUUUUUUURDDDDDDDDDUUUDDUUUDDUUUDDUUUDDUUURLLRLLRLLRLLRLLRLLRLLLLRLLRLLRLLRLLRLLRLLRUUUDDUUUDDUUUDDUUUDDUUUDDDDDDDDDRUU...

result:

ok Valid Solution (Length = 488).

Test #40:

score: 0
Accepted
time: 0ms
memory: 4060kb

input:

10 10
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
1111111111
1010101010
2 1 1 3

output:

UUUUUUUUUDLLUDDDDDDDDDLLUUUUUUUUUDLLUDDDDDDDDDLRRLUULRRLUULRRLUULRRLUULRRRRLDDRLDDRLDDRLDDRRRLUURLUURLUURLUURRRRUDDDDDDDDDLRUULRUULRUULRUULLDDDDDDDDUUUUUUUUULRLLRRRRLLRLUUUUUUUUUDDDDDDDDLLUURLUURLUURLUURLDDDDDDDDDURRRRUULRUULRUULRUULRRRDDLRDDLRDDLRDDLRRRRLUULRRLUULRRLUULRRLUULRRLDDDDDDDDDULLDUUUUUUU...

result:

ok Valid Solution (Length = 326).

Test #41:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

10 10
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
1111111111
0000000001
1111111111
1000000000
7 4 3 5

output:

LLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLRRRRLLLLLRRRRLLLLLRRRRLLLLLRRRRLLLLLRRRRLLLLLUULRLLRRLLLRRRLLLLRRRRLLLLLRRRRRLLLLLRRRRRRLLLLLRRRRRRLLLLLRRRRRRLLLLLRRRRRRUURLRRLLRRRLLLRRRRLLLLRRRRLLLLLLLLLLRRRRLLLLRRRRLLLRRRLLRRLRUURRRRRRLLL...

result:

ok Valid Solution (Length = 520).

Test #42:

score: 0
Accepted
time: 1ms
memory: 3832kb

input:

10 10
1110000101
1100110001
1011011001
0000000111
0010010111
0100111011
1110010011
1100111111
0110001110
0100000101
9 9 6 10

output:

-1

result:

ok No Solution.

Test #43:

score: 0
Accepted
time: 1ms
memory: 3924kb

input:

10 10
1110111011
1111111111
1110110000
1111111111
1010011100
1111111111
1111001110
1111111111
1001010011
1111111111
6 9 2 9

output:

DLUDRURRDRUUUUULUULDDDDLLRRRUDLUULUUUULDDUURRRRDDRRUULRRRRDDDDDDDDDLUUULUUUURDDUULDLDLRURDDDDDDULLUURLDDDURRUURDDDRUUUUUUUUULLLDDLLUULLLDDDDLRRUURDDRDDDDDLULLDUULRRDUUDUUDUUDUULRRLRRLRRLRRLRRLRRRRLRRLRRLRRLRRLRRLUUDUUDUUDUUDRRLUUDLLULDDDDDRDDRUURRLDDDDLLLUULLDDLLLUUUUUUUUURDDDRUURRUDDDLRUULLUDDDDDDR...

result:

ok Valid Solution (Length = 388).

Test #44:

score: 0
Accepted
time: 1ms
memory: 3828kb

input:

10 10
1111110011
1011111110
0111011111
1101101101
1111111110
1110111101
1011011111
1111111101
1011111101
1111111011
7 3 5 5

output:

ULUUUULDDDDDDDDLUUUUUUUDDLLUUURLDDDDURRDDLRDDLDDLRUULUDRRDRRUDDRURUUURUUUUULDDDULUUDDRUURRRDDDDDDLUUDDDLDDLRRRUDLLUURURUUUULRUULLDDDDDLDLRDDLDLULUUURLUUUUURDDDDRDLRUDDUDDRRRLLLRRRRLLLLLLLLRRRRLLLRRRDDUDDURLDRDDDDRUUUUULRUUULULDLDDRLDLDDDDDLLUURLUUUURURUULLDURRRLDDLDDDUULDDDDDDRRRUURDDUULUDDDLUUUUURU...

result:

ok Valid Solution (Length = 368).

Test #45:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

10 10
1101011101
1110111011
0101110101
1111101011
1111111111
1010111010
0111111101
1111101011
0111111101
1011101111
3 8 2 2

output:

-1

result:

ok No Solution.

Test #46:

score: 0
Accepted
time: 1ms
memory: 3872kb

input:

20 12
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
111111111111
16 8 13 12

output:

UUUUUUURDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUDDDDDDDDDDDRRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDLUUUUUUUUU...

result:

ok Valid Solution (Length = 1128).

Test #47:

score: 0
Accepted
time: 1ms
memory: 4076kb

input:

20 17
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
11111111111111111
10101010101010101
111111...

output:

UUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRRRLUURLUURLUURLUURLUURLUURLUURLUURLUURRRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDR...

result:

ok Valid Solution (Length = 1234).

Test #48:

score: 0
Accepted
time: 0ms
memory: 3868kb

input:

20 19
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
1111111111111111111
0000000000000000001
1111111111111111111
1000000000000000000
11111111111111...

output:

LLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 916).

Test #49:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

20 16
0101001111110001
0000111101001011
0000111100011001
1101110100110100
1011011110001101
1101000110111111
0111010111100101
1101101111011001
1101010100000101
1111001000110010
0001011000101000
0101111010110110
0001101111000111
1010100010000110
0100100011011100
0100100101011111
0001000001001110
10011...

output:

-1

result:

ok No Solution.

Test #50:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

20 18
100101011111011110
111111111111111111
101111101010000001
111111111111111111
110010011011001010
111111111111111111
110110111110000010
111111111111111111
100001000001111000
111111111111111111
100010100111111000
111111111111111111
111100011010110111
111111111111111111
111101010111011110
111111111...

output:

LUULLUULRRRUUUULUUUUUULLDDRDDDDLUUDDRUUUULUURRRUULLLRRRRRRDDLLRRRRUULRRRDDDDDDDDLUULUUUDLDDDDDDLUULUULUULUDDDUURRRDDUULLDDDDDDDDRUUUDDRDRDDDDDDDLULLDLULDLULUURUDRLLDDRDRURDRURRDRRURUUUUUULDDUURRDDDDRDDLDLRURRUURUUUULUULUURRDDRRRRUUUUUUUUUULDDLUULDDDDDDDDRUUUUUDRDDDDUUUULDDDDLUULLUUUULUURRLLDDRRLDDLR...

result:

ok Valid Solution (Length = 1256).

Test #51:

score: 0
Accepted
time: 0ms
memory: 4004kb

input:

20 16
1110111111111111
1111111001111111
1111110111111011
1111110011111111
1111111111011111
1111110111101111
1111011111111111
1101111111111111
1011111111111001
0111111011111111
1110111111111111
1111111111111111
1111011011111111
0101110111111111
1110111101111110
1111111111111111
1111111111011111
11111...

output:

UUUUUUUUUULDDDDDLUUUUULDDDDLUUUULDDLDDDDDDDDDDDLUUUUUUUUUUULUULDDDDDDDDDDLUUUUDDDDDDDDDDDDDRUUUUUUURDDDDRUUDRDDDDLUUDLDURDRRUUURUUUUUUUUUUULUDDDDDDDDDDUUUUUUUUURDRDDDDDDDDDDDLDDRRRURUUUUUUULUUUUDLDURDDDDDLUUDDDDRLUURUURRUUURUULUUUUUURDDDDRUUUURDDDDDDDDDDLUUUDDDDLUDDDDDDDDLUUUUDDDDDLRURRUUUUURURUDDDD...

result:

ok Valid Solution (Length = 1304).

Test #52:

score: 0
Accepted
time: 0ms
memory: 3812kb

input:

20 18
110111110101110101
101010111110101010
110101111101111101
111011111011101111
010111110111111101
111011111011111011
011111110111010111
101110101010111010
010111110101110111
101010101011101110
011101110111011111
101010111011111010
010101111111110101
101011101110111011
110101011101010101
101010101...

output:

-1

result:

ok No Solution.

Test #53:

score: 0
Accepted
time: 0ms
memory: 4076kb

input:

14 20
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
...

output:

DDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUUDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUU...

result:

ok Valid Solution (Length = 1292).

Test #54:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

19 20
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
...

output:

UUUUUUUUULLDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUULRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRRRRUUUUUUUULRRRUUUUUUUUUULRRRDDDDDDDDDDDDDDDDDDLLUUUUUUUDLRRLDDLRRLDDLRRLDDLRRRRRUUUUUUUUUUUUUUUUUULRRRDDDDDDDDDDDDDDDDDDLRRRUUUUUUUUUUUUUUUUUULRRRDDDDDDDDDDDDDDDDDDLRRRUUUUUUUUUUUUUUUUUULRDDLRD...

result:

ok Valid Solution (Length = 1354).

Test #55:

score: 0
Accepted
time: 1ms
memory: 3924kb

input:

10 20
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
5 6 8 20

output:

URRRRRRRRRRRRRRRRRRRUDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUUDDRRRRRRRRRRRRRRRRRRRUDDURRRRRRRRRRRRRRRRRRRDDUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUUL...

result:

ok Valid Solution (Length = 464).

Test #56:

score: 0
Accepted
time: 0ms
memory: 3776kb

input:

18 20
11011110100011011100
01100010001011110000
11100110001011101110
10110111100011001111
10100011111011110011
00001010110000010010
01101101100110010001
10001000111110000100
11000011001000001001
10101011101010100110
01111011011010100001
00010110000101101011
10110101011011000011
00110010111011000100
...

output:

-1

result:

ok No Solution.

Test #57:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

20 20
10101101000110011011
11111111111111111111
10110101010011101111
11111111111111111111
11010000010101011110
11111111111111111111
10100110101011011011
11111111111111111111
10010101101010101001
11111111111111111111
11101001101101101010
11111111111111111111
11100110110111110111
11111111111111111111
...

output:

UUULLDDDDDDDDDDDDLDDDDLLDLUUULUUUULUUUUUUUUUUUULDDLDDDDLUUUULUULDDDDDDDDRUUUUUDDDDRDRDDDDDDDDDDDRURUULUUUUDDRLDDRDRDULDLDLULUUUULUULUURUDRLLDDDDUURRLDDDDDDDLUUUDDDRUUUUURDDDDRUUUUUUUURLUURUUUUDDDDLLULDLUUUUUUUURRRLLDDRDDDDRUUUURUURRRRDDLDDDDDDLUUUUUUDDDDDDDDRDDDDRDDRLUURUUUUUULUUUURDDRUUUUUULRRRRRRR...

result:

ok Valid Solution (Length = 1438).

Test #58:

score: 0
Accepted
time: 1ms
memory: 3832kb

input:

18 20
11111111111110111111
01111111111011111111
01111111111110011111
11111111111101111111
11111011111110111111
11111111111110111110
11111111111111011111
11011111111111111110
11110111111111001111
10111111110110111111
11111011111111111111
11111111111011101111
11101111001111111111
11111111111111111111
...

output:

DDDDLUUUULDLULDDDDDDDDDDDDDRUUUUUURUUUULUDDDUURDDDRDDDDDDDDDDDLUUUUUUUUDDDDDLDLDDRLULLDLUUUUUUULUUUUUUUUUULDLULDURDDDDDDDDDDDDDDDDDLUUUUDDDDRRUUUUUUUUUUUUUDDDDDDDRDDDDDDUUUUUULDDDDDDLUUUUUULRUULUUUUUUDDDDDDRUUUUUUUURURRDDRUURDDDDDDDLUUUUDLDURDDDDLUDRURUUUUUUULDDLUULDDDDDDDDDDRRRUDDULLDDRDDRLUULDDDDD...

result:

ok Valid Solution (Length = 1414).

Test #59:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

13 20
11011101111111110111
11111110111010111111
11111111111101011101
10111010101111111010
01011101111111010111
10101011101110101110
01111101010101011111
11111011111110101011
11110111111111011111
11111010101011101011
01111111110101011111
10111010101011111110
11111111110111011101
12 16 1 20

output:

-1

result:

ok No Solution.

Test #60:

score: 0
Accepted
time: 1ms
memory: 3856kb

input:

20 20
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
11111111111111111111
...

output:

UUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRRUUURUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDLUUDDRRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 1992).

Test #61:

score: 0
Accepted
time: 0ms
memory: 3936kb

input:

20 20
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
11111111111111111111
10101010101010101010
...

output:

UUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDLRRRUDRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDDDDDDDDDDDDDDDDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDDDDDDDDDDDDDDDDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDDDDDDDDDDDDDDDDDLRRRUUUUUUUUUUUUUUUUUUUDLRRRUDDDDDDDDDDDDDDDDDDDLRUULRUULRUULRUULRUULRUULRUULRUULRUULLDDLRDDLRDDLRDDLRDDLRDDLRDD...

result:

ok Valid Solution (Length = 1418).

Test #62:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

20 20
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
11111111111111111111
00000000000000000001
11111111111111111111
10000000000000000000
...

output:

LLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLL...

result:

ok Valid Solution (Length = 3572).

Test #63:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

20 20
11110100001010101100
10110001101110101000
01011110111010110000
10111001001011011100
00110111011000010101
01001111110001010010
00101001010111010111
10110100100010001000
10101010001110000010
01111111010110101011
00100101001111000101
00110001001001111000
10101110010001000010
00000100010000110000
...

output:

-1

result:

ok No Solution.

Test #64:

score: 0
Accepted
time: 0ms
memory: 3852kb

input:

20 20
11010001010100101010
11111111111111111111
11000010111011001011
11111111111111111111
10010100111100111110
11111111111111111111
11101100001110000111
11111111111111111111
11010100111101000011
11111111111111111111
11010011111100110100
11111111111111111111
10001011110000111010
11111111111111111111
...

output:

DDDDLLLDDDDDDDDLUUUUUULLLLUULUUUULLDDDDLLUUUULDDDDUUUURRLDDRLDDRRRLUURLUURRRRRRRRDDLDDLLLRRRUULLLLRRRRRRUURLDDRLLUULLLLLLDDDDRDDLDDDDLUUUULDDLDDLDDDDDDDDDULUUDDRRRUUUULUURRRRUURRUULLRRRDDDDDDDDDDLDULUULDDLDULRRUULUULDDUURRRUURUDDDDDUUUULDDLLDDRRDDRRRUUUURDDDDRDURUULRRUUUUUULUUUULDDDDUUUURRRUURUUUULR...

result:

ok Valid Solution (Length = 1426).

Test #65:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

20 20
11111111111101111111
11111111111111111101
11111110111110111111
11111011110111111111
11010010110111111011
11111111111111101111
11111111111111111111
11111111111111111001
11111111011110111111
11111111111111111101
11101011111111111111
11111110111111101111
11111111111111111101
10111111111111100111
...

output:

UUUUUUUUUUUUULULDDDDDDDDDDDDDDLUUUULUUUUUUUULUULDDLUULDDDLULUULDDDDDDDDDDDDDDDDDDDRUURUUUUUUUUUUUULUUDDDDDDDDDDDUUUUUUUUURDRDDDDRURUUUUULUDDDDUUURRLDDRDDUULDDDDDDDDDDDDDLULUUUUUURUDDDUULDDDDRLDDDLUDRURDRRUURURUDDDDLUDRRUUURUUUUUUUUUDDDDDDDDRDDDDLUUDDRUUUULDLDDDLUUULDLDDLUUUUURUUUUDRDDDUUULDDDLUUUUUL...

result:

ok Valid Solution (Length = 1510).

Test #66:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

20 20
11010111110101010101
10111010101111101010
11111101111101110111
10101011111010101110
11111111110101111101
10111111111010101111
11110101010111111101
10111110101011101111
01110111011101111101
10111011101010111010
11010111011111010111
11111011101011101111
01010111011111011111
11111010111110111011
...

output:

-1

result:

ok No Solution.

Test #67:

score: 0
Accepted
time: 1ms
memory: 4008kb

input:

30 25
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
1111111111111111111111111
11111111...

output:

UUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 3506).

Test #68:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

30 25
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
1010101010101010101010101
1111111111111111111111111
10101010...

output:

UUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 2454).

Test #69:

score: 0
Accepted
time: 1ms
memory: 3812kb

input:

30 25
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
0000000000000000000000001
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
0000000000000000000000001
1111111111111111111111111
1000000000000000000000000
1111111111111111111111111
00000000...

output:

LLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLL...

result:

ok Valid Solution (Length = 10672).

Test #70:

score: 0
Accepted
time: 0ms
memory: 3836kb

input:

30 30
011110110001111010011111110010
011101110110100110001101010100
100100100111010000000011100101
111110001011110110101000100000
100110011100000111100111100010
110011101000111000101110011101
011000001101110100001010011100
001101101010010100111111110011
100010111001110111010110100001
000101010010110...

output:

-1

result:

ok No Solution.

Test #71:

score: 0
Accepted
time: 1ms
memory: 4080kb

input:

30 30
101011111010110011011100010111
111111111111111111111111111111
101000010010011000101010010010
111111111111111111111111111111
101010011110010001011010010101
111111111111111111111111111111
111100010110101001000001000001
111111111111111111111111111111
111101000101101001001000100001
111111111111111...

output:

UUUUUULDDLUULDDLUULDDDDLUUUULDDLUULDDLDDDDDDLUUUUUULDDDDDDLDDLUULLUULLUULLUUUULLLDDDDDDLUULUULUULDDDDLLDDDDDDRRDDLLRRRRUUUUUUULUUDDDDDLUULDDUURDDRUUURDDDRRDDDDDDDDDDLLUULUULDDDDDDLLUUUUUURLDDRDDUULDDDDDDDDDDRDDDLUDRRURRUUUULLDDRLUULRRRRRUULUULLRRRRRUULUURRDDDDDDLLRRRRRUUUULUULUUUULUUUULUULDDUURRRLLD...

result:

ok Valid Solution (Length = 2810).

Test #72:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

30 30
111111111111111101111111011011
111111100111011111111111101010
111111111111111111111111011111
111111111101111111110111111110
111111111111111011111111111111
111110111111111111111111011111
111111111111111111111111111011
111101111111011111111111111111
111111111111111111111111111111
101110111110111...

output:

UUUUULUUUUUUUULUUUUUUUUUUULDDDLUUUDDDDDRDDDDDDDDDDDDDDDDDDDDDDDDLRUULRRUUURUUUULUUUUUUUUDDDDDDDDDDUURDDDDDDDDDRLUURUURDRUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDLUUUUULDURDDDLDDDDDDRUUUDRLDDDDDDDDDDRUUUUUUUUDDDDDDDDDDDDDDUUUUUULUUUUUUUULUUUUUURDDRUUUUURRDDDDDDDDRUUUUUUUUDRDDDDDDDDDDDDDDDDDDLUUUUUUUUUUDLRDDLD...

result:

ok Valid Solution (Length = 4060).

Test #73:

score: 0
Accepted
time: 0ms
memory: 3852kb

input:

30 30
110111011111110111011111110101
101110101010111010101011101010
011101111101011101011111010111
111110101110111111111011101110
010101110101011101010101111111
101111101011111111111110101011
111101110111010101011101010101
111011111010101010101010101111
011111011111110101011111111101
111010101111101...

output:

-1

result:

ok No Solution.

Test #74:

score: 0
Accepted
time: 0ms
memory: 3856kb

input:

21 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

UUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 3074).

Test #75:

score: 0
Accepted
time: 1ms
memory: 4076kb

input:

21 30
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101...

output:

LUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUULLDDDDDDDDDDDDDDDDDDDDLRRLUULRRLUULRRLUULRRLUULRRLUULRRLUULRRLUUL...

result:

ok Valid Solution (Length = 2362).

Test #76:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

21 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000...

output:

LLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 3436).

Test #77:

score: 0
Accepted
time: 0ms
memory: 3888kb

input:

25 30
011010010110010101001110110111
000011111001111101110011010001
011011100010011000110100110000
001111001100100010111111101001
000101111100111001000000001111
001010110011101110101000010000
001010011001010000011001001001
011111010111110110101001110000
011001010011100010100101011000
100011000011110...

output:

-1

result:

ok No Solution.

Test #78:

score: 0
Accepted
time: 1ms
memory: 3844kb

input:

25 30
101100000100000111111100110011
111111111111111111111111111111
100111110101001111010001110011
111111111111111111111111111111
101101100110111111011110101110
111111111111111111111111111111
111001000110101100010101000110
111111111111111111111111111111
100000001011110010001101011010
111111111111111...

output:

UUUUUUUUUUUUUUUUUUULRRRDDLDDRRUUUURDDRUUUUUUULDDDLUULDDLUULLRRDDLLRRRUURDDRUUURRDRURDDDLDDDDDDDDLUULLRRDDLLDDLUULLRRDDDDDDLUULUURLDDRDDLDDDDRUURRDDDDDLUUUDDLLRRDRURUURUULUUUUUURDDRDDDDDDRUURUULUUUULRRRDDLRRRUUUUUULLUULUULDDDDDDRRRLLLUURLUUUURRRUUUUURDDDDDRUURUULUDRRURDRURDDDLDDDDLLUULRRLDDDDLLUUUDLL...

result:

ok Valid Solution (Length = 2386).

Test #79:

score: 0
Accepted
time: 1ms
memory: 3904kb

input:

25 30
111111101111111111111111111111
111111111111111101111111110111
111111111111101111111111111111
111111111111111101101111111111
011101111111111111111111101111
111011100111111110111110111111
111111110111111111111111111111
111111111111110111111111111111
111111111111111101111111111111
111111111111111...

output:

ULUUULDDLUUDLDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDLULDDDDDDDDLUUUUUUUUUUUUUUUULDDLUULDDDDDDDDDDDDDDDDDDDDDDDDLUULUUUUUUUUULUUUUUUUUUUUUULDDDDDDDDLUUUUUUUULDDDDLUUUULDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUULDDLUUDDDDDRUDDDDULRUULUUURUURDDDDDDDDDDLDDDDDDDDDDDDDDLUUUUUUUUDDDDD...

result:

ok Valid Solution (Length = 3136).

Test #80:

score: 0
Accepted
time: 0ms
memory: 3904kb

input:

25 30
110101110101011111010101010111
101111101011111011111110101010
110111011101110111111101011101
101011111011101011111111111011
110111111101011111110111111111
111111111110101011111111101010
110101010101010101011111011101
101010111010101111111111101111
111101110111011101011111010111
101010101010111...

output:

-1

result:

ok No Solution.

Test #81:

score: 0
Accepted
time: 1ms
memory: 3876kb

input:

30 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

UUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUU...

result:

ok Valid Solution (Length = 4336).

Test #82:

score: 0
Accepted
time: 1ms
memory: 3856kb

input:

30 30
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101010101010101010
111111111111111111111111111111
101010101010101...

output:

UUUUUUUUUUUUUUUUUUUDLLUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRLDDLRRRRRUUUUUUUUUDLRRRUUUUUUUUUUUUUUUUUUUUUDLRRRUDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUDLRRLDDLRRLDDLRRLDDLRRRRRUUUUUUUUUUUUUUUUUUUUUU...

result:

ok Valid Solution (Length = 3294).

Test #83:

score: 0
Accepted
time: 1ms
memory: 3820kb

input:

30 30
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000000000000000000
111111111111111111111111111111
000000000000000000000000000001
111111111111111111111111111111
100000000000000...

output:

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 14556).

Test #84:

score: 0
Accepted
time: 1ms
memory: 3928kb

input:

30 30
010110110101101010000010000110
101110000111000001001111100101
010100011111100110100001111101
101101100010111011011010001010
100101010100001011101100101100
101001111001111101101100001110
000111101010011110100001110100
111111001101000001011110000111
010000100010000100000011101000
100001010111010...

output:

-1

result:

ok No Solution.

Test #85:

score: 0
Accepted
time: 1ms
memory: 3892kb

input:

30 30
100110101011111011001000111100
111111111111111111111111111111
101001000111011110000110011110
111111111111111111111111111111
111001111110100011111000000010
111111111111111111111111111111
100111001001100000100010001101
111111111111111111111111111111
110001101000111011111010110110
111111111111111...

output:

DDLUUDDRRUUUULLRRRDDRRUULRRDDRDDDDLDDDDLLLLDDDDLLUURUULRDDLDDDDRDDLDDRDDLDDRDDDDLRRUURDDDLRRUUURRRDDLLDURRRUURUULLUUUUUUUUUUUULDDDDLLUUUULDDUURRLDDRLDDDDLUULDDDDDDDDRUURUULUDRRUURLDDDDRLUURLLDDLDDRRRLLLLUUUUUUUURDDRUURRUUUURRUULUURRUULRRDDRRRDDLLDDLLUUUDRLDDDDDDLRRUURDDRRUUUULDDUURRRUULUURRUULUUUULL...

result:

ok Valid Solution (Length = 2886).

Test #86:

score: 0
Accepted
time: 1ms
memory: 3860kb

input:

30 30
111101111111111111111011111111
100111111111111111111111011111
111111011111111111011111111110
101111111101111111111111111111
111111111111111111111111111111
111111101111011111111110111111
111011111111111111111111111111
111111111111111111111101111111
111111111111111111111111111111
011111100111111...

output:

UUUUUUUUUUUUUUUUUULDDDDDDLUUUUUULDDDDDDLUUULUUULDLULDULLDDDDDDDDDDDDDDDDLUUUUUDLDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUULUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLULUUUUUUUUUUUUUUUUUUUUUUUUUUUULDLULDDDDDLUUUUULDDDDDDDDDDDDLLUUUUUUUUUUUULDDDDDDDLDDDDDDDLUUUUUUUUUUUUUURDDDDDUUUUULDDDDDDDDDDDDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 3692).

Test #87:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

30 30
011111010101111111011101111101
111011101011111110111111101011
111111010101011101111101110101
111110101011101110111111101110
010111011101110101110101111101
101111101011101110101010111111
110101010101010111011101010101
101110101111101110101110111111
110111011101010111010111110101
101011111110111...

output:

-1

result:

ok No Solution.

Test #88:

score: 0
Accepted
time: 1ms
memory: 4056kb

input:

30 30
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111111111111111111
111111111111111...

output:

UUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLU...

result:

ok Valid Solution (Length = 3816).

Extra Test:

score: 0
Extra Test Passed