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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
#394570#7751. Palindrome PathluanmengleiAC ✓6ms31596kbC++173.6kb2024-04-20 16:17:512024-04-20 16:17:52

Judging History

你现在查看的是最新测评结果

  • [2024-04-20 16:17:52]
  • 评测
  • 测评结果:AC
  • 用时:6ms
  • 内存:31596kb
  • [2024-04-20 16:17:51]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

namespace SOL {

using i64 = long long;
void debug(const char *msg, ...) {
#ifdef CLESIP
    va_list arg;
    static char pbString[512];
    va_start(arg,msg);
    vsprintf(pbString,msg,arg);
    cerr << "[DEBUG] " << pbString << "\n";
    va_end(arg);
#endif    
}
template<typename T, typename L>
bool chkmax(T &x, L y) { if (x < y) return x = y, true; return false; }
template<typename T, typename L>
bool chkmin(T &x, L y) { if (y < x) return x = y, true; return false; }

const int N = 35;
const int dx[] = { 1, -1, 0, 0 };
const int dy[] = { 0, 0, 1, -1 };
const int neg[] = { 1, 0, 3, 2 };
const char wrd[] = { 'D', 'U', 'R', 'L' };
int n, m;
char pic[N][N];
array<int, 2> st, ed, bst;
bool tvis[N][N], vis[N][N][N][N];
array<int, 5> lst[N][N][N][N];
vector<int> travel;
queue<array<int, 4>> q;

void dfs(int x, int y) {
	tvis[x][y] = true;
	for (int i = 0; i < 4; i ++) {
		int xx = x + dx[i], yy = y + dy[i];
		if (xx >= 1 && yy >= 1 && xx <= n && yy <= m && !tvis[xx][yy] && pic[xx][yy] == '1') {
			travel.push_back(i);
			dfs(xx, yy);
			travel.push_back(neg[i]);
		}
	}
}

bool check(int xx, int yy) {
	return xx >= 1 && yy >= 1 && xx <= n && yy <= m && pic[xx][yy] == '1';
}

array<int, 2> walk(int x, int y, int op) {
	int xx = x + dx[op], yy = y + dy[op];
	if (!check(xx, yy))
		return { x, y };
	return { xx, yy };
}

void bfs() {
	lst[st[0]][st[1]][ed[0]][ed[1]][0] = -1;
	vis[st[0]][st[1]][ed[0]][ed[1]] = true;
	q.push({ st[0], st[1], ed[0], ed[1] });
	while (!q.empty()) {
		auto [x, y, u, v] = q.front(); q.pop();
		// debug("vis (%d, %d, %d, %d)", x, y, u, v);
		if (x == u && y == v) {
			vector<int> ans;
			while (lst[x][y][u][v][0] != -1) {
				auto [op, xx, yy, uu, vv] = lst[x][y][u][v];
				ans.push_back(op);
				x = xx, y = yy, u =  uu, v = vv;
			}
			for (int i = int(travel.size()) - 1; i >= 0; i --)
				cout << wrd[travel[i]], bst = walk(bst[0], bst[1], travel[i]);
			cerr << "\n";
			for (int i = int(ans.size()) - 1; i >= 0; i --)
				cout << wrd[ans[i]], bst = walk(bst[0], bst[1], ans[i]);
			cerr << "\n";
			for (int i = 0; i < int(ans.size()); i ++)
				cout << wrd[ans[i]], bst = walk(bst[0], bst[1], ans[i]);
			cerr << "\n";
			for (int i = 0; i < int(travel.size()); i ++)
				cout << wrd[travel[i]], bst = walk(bst[0], bst[1], travel[i]);
			cerr << "\n";
			debug("bst: (%d, %d)", bst[0], bst[1]);
			return;
		}
		auto go = [&](int xx, int yy, int uu, int vv, int op) {
			if (!vis[xx][yy][uu][vv]) {
				vis[xx][yy][uu][vv] = true;
				q.push({ xx, yy, uu, vv });
				lst[xx][yy][uu][vv] = { op, x, y, u, v };
			}
		};
		for (int i = 0; i < 4; i ++) {
			int uu = u + dx[i], vv = v + dy[i];
			auto [xx, yy] = walk(x, y, i);
			auto [wu, wv] = walk(u, v, neg[i]);
			if (!check(uu, vv))
				go(xx, yy, u, v, i);
			if (wu != u || wv != v)
				go(xx, yy, wu, wv, i);
		}
	}
	cout << "-1\n";
	cout << "????\n";
	// assert(false);
}

void solve() {
	cin >> n >> m;	
	for (int i = 1; i <= n; i ++)
		cin >> (pic[i] + 1);
	cin >> st[0] >> st[1] >> ed[0] >> ed[1];
	dfs(ed[0], ed[1]);
	bst = st;
	for (int i = 1; i <= n; i ++)
		for (int j = 1; j <= m; j ++)
			if (!tvis[i][j] && pic[i][j] == '1')
				return cout << "-1\n", void();
	for (int i = int(travel.size()) - 1; i >= 0; i --)
		st = walk(st[0], st[1], travel[i]);
	debug("st (%d, %d)", st[0], st[1]);
	bfs();

	for (int i = 0; i < (int) travel.size(); i ++) {
		ed = walk(ed[0], ed[1], travel[i]);
		debug("(%d, %d)", ed[0], ed[1]);
	}
}

}
int main() {
	ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	SOL::solve();
	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: 0ms
memory: 7760kb

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: 3660kb

input:

2 2
10
01
1 1 2 2

output:

-1

result:

ok No Solution.

Test #3:

score: 0
Accepted
time: 1ms
memory: 5700kb

input:

1 1
1
1 1 1 1

output:


result:

ok Valid Solution (Length = 0).

Test #4:

score: 0
Accepted
time: 1ms
memory: 7972kb

input:

5 4
1111
1111
1111
1111
1111
4 2 4 2

output:

ULDDDDRUURDDUUUUDDLDDLLUUUUDDDDRUUUURDDRLLLLRDDRUUUURDDDDUUUULLDDLDDUUUUDDRUURDDDDLU

result:

ok Valid Solution (Length = 84).

Test #5:

score: 0
Accepted
time: 1ms
memory: 9772kb

input:

5 5
11111
10101
11111
10101
11111
1 4 5 5

output:

DDDDRRUULRUURRDDLRDDLRUUUULLLRDDDDLLUUUUDDRRRRDDUUUULLDDDDRLLLUUUURLDDRLDDRRUURLUURRDDDD

result:

ok Valid Solution (Length = 88).

Test #6:

score: 0
Accepted
time: 1ms
memory: 7912kb

input:

5 3
111
100
111
001
111
4 3 3 2

output:

RDDLLRRUULLUURRLLDDRRDDLLRRUULLUURRLLDDR

result:

ok Valid Solution (Length = 40).

Test #7:

score: 0
Accepted
time: 1ms
memory: 7988kb

input:

5 4
1001
1101
1111
0011
0010
2 2 1 1

output:

UULLULDDDUUURUDDRDURDDULLUDDRUDRDDURUUUDDDLULLUU

result:

ok Valid Solution (Length = 48).

Test #8:

score: 0
Accepted
time: 1ms
memory: 7932kb

input:

5 3
101
111
100
111
100
4 1 2 2

output:

RDUUULLRRUDDDLLDURRUULLUURRUDLLDDDURRLLUUUDR

result:

ok Valid Solution (Length = 44).

Test #9:

score: 0
Accepted
time: 1ms
memory: 7772kb

input:

5 5
01110
10110
11110
11011
11100
2 4 5 1

output:

DDLLDDRLLUUULRDDDRUURUULRDDRDUUUDDLULLULDDUUUDRDDRLUURUURDDDRLUUULLRDDLLDD

result:

ok Valid Solution (Length = 74).

Test #10:

score: 0
Accepted
time: 1ms
memory: 7708kb

input:

5 3
011
111
110
111
011
3 1 2 1

output:

UULDDDLUDRUUUULDURDRDDLLDDRDRUDLUUUURDULDDDLUU

result:

ok Valid Solution (Length = 46).

Test #11:

score: 0
Accepted
time: 1ms
memory: 9772kb

input:

4 5
11111
11111
11111
11111
3 2 1 3

output:

UUURDDDRUUUDDDLUUULLDDDLUUUDDDRUUURDDDUUUUDDDRUUURDDDUUULDDDLLUUULDDDUUURDDDRUUU

result:

ok Valid Solution (Length = 80).

Test #12:

score: 0
Accepted
time: 1ms
memory: 9828kb

input:

5 5
11111
10101
11111
10101
11111
2 5 1 1

output:

UUUULLDDRLDDRLLLUURLUURLDDDDRRUUUURRDDDDUULLLLUUDDDDRRUUUURRDDDDLRUULRUULLLRDDLRDDLLUUUU

result:

ok Valid Solution (Length = 88).

Test #13:

score: 0
Accepted
time: 1ms
memory: 5672kb

input:

4 5
11111
10000
11111
00001
1 3 4 5

output:

DRRRRDDLLLLRRRRUULLLLUDDRRRRDDULLLLUURRRRLLLLDDRRRRD

result:

ok Valid Solution (Length = 52).

Test #14:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

3 5
10100
00010
00111
1 3 1 1

output:

-1

result:

ok No Solution.

Test #15:

score: 0
Accepted
time: 1ms
memory: 5648kb

input:

4 5
10001
11111
11100
11111
4 5 3 1

output:

ULDDRDULLLLDURRUULLRRDDRUURDULLLLUDRUURDDRRLLUURRUDLLLLUDRDDLU

result:

ok Valid Solution (Length = 62).

Test #16:

score: 0
Accepted
time: 1ms
memory: 7780kb

input:

3 5
11111
10100
11111
1 2 3 5

output:

RRDDRRUULRDDLLLLRRUULLRRDDRRLLUURRLLLLDDRLUURRDDRR

result:

ok Valid Solution (Length = 50).

Test #17:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

4 5
01110
10101
11011
10111
1 3 2 3

output:

-1

result:

ok No Solution.

Test #18:

score: 0
Accepted
time: 1ms
memory: 10048kb

input:

5 5
11111
11111
11111
11111
11111
1 3 5 2

output:

DDDDRUUUUDDDDLLUUUULDDDDLUUUUDDDDRUUUURDDDDRUUUUDDLLDDUUUURDDDDRUUUURDDDDUUUULDDDDLUUUULLDDDDUUUURDDDD

result:

ok Valid Solution (Length = 102).

Test #19:

score: 0
Accepted
time: 1ms
memory: 9736kb

input:

5 5
11111
10101
11111
10101
11111
5 1 2 3

output:

UUULLDDRLDDRRRRUULRUULRDDDDLLLLUUUURRDDDUUDDDRRUUUULLLLDDDDRLUURLUURRRRDDLRDDLLUUU

result:

ok Valid Solution (Length = 82).

Test #20:

score: 0
Accepted
time: 1ms
memory: 7776kb

input:

5 5
11111
10000
11111
00001
11111
4 5 5 3

output:

RRLLLLDDRRRRDDLLLLRRRRUULLLLUURRLLDDRRRRDDLLRRUULLLLUURRRRLLLLDDRRRRDDLLLLRR

result:

ok Valid Solution (Length = 76).

Test #21:

score: 0
Accepted
time: 0ms
memory: 3692kb

input:

5 5
01010
10101
10101
11001
10011
4 1 5 4

output:

-1

result:

ok No Solution.

Test #22:

score: 0
Accepted
time: 1ms
memory: 9688kb

input:

5 5
10101
11111
10101
11111
11111
3 1 2 4

output:

LDUUUURDRURDRDDLLDUUDRRDUUUUDLULDLULDDDRURUURURDDDLULDLULDUUUUDRRDUUDLLDDRDRURDRUUUUDL

result:

ok Valid Solution (Length = 86).

Test #23:

score: 0
Accepted
time: 1ms
memory: 9960kb

input:

5 5
00001
11111
01110
01111
01111
1 5 5 2

output:

DDDRLLUUULDLUDRDDLDURUUURDDDRUUUDLLLLDUUURDDDRUUURUDLDDRDULDLUUULLRDDD

result:

ok Valid Solution (Length = 70).

Test #24:

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

input:

5 5
01011
10111
11011
10101
01110
4 1 2 3

output:

-1

result:

ok No Solution.

Test #25:

score: 0
Accepted
time: 2ms
memory: 14184kb

input:

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

output:

UUUUUUULDDDDDDDDDRURUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUUDDDDDDDDDLUUUUUUUUULDDDDDDDDDLLRUUUUUUUUULDDDDDDDDLDLLUUUUUUUUUDDDDDDDDDRUUUUUUUUURDDDDDDDDDUUUUULLRRRRRRRRLLUUUUUDDDDDDDDDRUUUUUUUUURDDDDDDDDDUUUUUUUUULLDLDDDDDDDDLUUUUUUUUURLLDDDDDDDDDLUUUUUUUUULDDDDDDDDDUUUUUUUUURDDDDDDDDDRUUUUUU...

result:

ok Valid Solution (Length = 342).

Test #26:

score: 0
Accepted
time: 0ms
memory: 7968kb

input:

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

output:

UUUUUUULLLRDDRLLRDDRLLRDDRLLRDDRRRRUULRUULRUULRUULRUDDDDDDDDDLLLLLRUUUUUUUUUDRRUDDDDDDDDLDUUDLDDDDDDDDURRDUUUUUUUUURLLLLLDDDDDDDDDURLUURLUURLUURLUURRRRDDRLLRDDRLLRDDRLLRDDRLLLUUUUUUU

result:

ok Valid Solution (Length = 182).

Test #27:

score: 0
Accepted
time: 0ms
memory: 9736kb

input:

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

output:

RUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUUR

result:

ok Valid Solution (Length = 232).

Test #28:

score: 0
Accepted
time: 0ms
memory: 3692kb

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: 0ms
memory: 9736kb

input:

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

output:

UUULLLRRDDLLRDDDDLDDRRRRRDUUUUULLDDRLLUUDDRUURRUUUULDDUURDDDDDDDDLLLDULLUUUUDDRUUUURUURDDDDULDDLUDDDDRUURUUUURDDUUUULLUDLLLDDDDDDDDRUUDDLUUUURRUURDDUULLRDDLLUUUUUDRRRRRDDLDDDDRLLDDRRLLLUUU

result:

ok Valid Solution (Length = 188).

Test #30:

score: 0
Accepted
time: 0ms
memory: 13836kb

input:

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

output:

DLUUUUUUUUURDDDDDDUUUUUULLLLDDDDDDDLUUULULDDDDDRDRRRUUURDDDUUULUUURDULUDDDDDDDLLUDLUUDLUUUUUUURURDDUULDLDDRDRDDDRUUUUUUURRRDDDDDDDDDRULUULLUUUULLUULURDDDDDDDDDRRRUUUUUUURDDDRDRDDLDLUUDDRURUUUUUUULDUULDULLDDDDDDDULUDRUUULUUUDDDRUUURRRDRDDDDDLULUUULDDDDDDDLLLLUUUUUUDDDDDDRUUUUUUUUULD

result:

ok Valid Solution (Length = 282).

Test #31:

score: 0
Accepted
time: 0ms
memory: 3600kb

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: 1ms
memory: 12208kb

input:

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

output:

UURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDDDDDUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLLUUUUDDDDRUUUUUUULDDUUDDDDRRRRRRRRRRDDDDUUDDLUUUUUUURDDDDUUUULLDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUULDDDDDDDLUUUUUUUDDDDDDDRUUUUUUURDDDDDDDRUUUUUUURDDDD...

result:

ok Valid Solution (Length = 338).

Test #33:

score: 0
Accepted
time: 2ms
memory: 14024kb

input:

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

output:

DDDDDDDDLLUURLUURLUURLUURLLLDDRLDDRLDDRLDDRLLLUURLUURLUURLUURLLLLRDDRLLRDDRLLRDDRLLRDDRLLRUUUUUUUUUDRRUDDDDDDDDDRRUUUUUUUUUDRRUDDDDDDDDDRRUUUUUUUUUDDDDLDLLLLDLDDDDUUUUUUUUURRDDDDDDDDDURRDUUUUUUUUURRDDDDDDDDDURRDUUUUUUUUURLLRDDRLLRDDRLLRDDRLLRDDRLLLLRUULRUULRUULRUULLLRDDLRDDLRDDLRDDLLLRUULRUULRUULRUU...

result:

ok Valid Solution (Length = 310).

Test #34:

score: 0
Accepted
time: 1ms
memory: 9796kb

input:

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

output:

RDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDR

result:

ok Valid Solution (Length = 232).

Test #35:

score: 0
Accepted
time: 0ms
memory: 3664kb

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: 1ms
memory: 7836kb

input:

5 10
1001011101
1111111111
1000011001
1111111111
1101110010
4 3 4 7

output:

DDDRUUUURDRRRURDDDLLLLRDURRRDUUUULDLLUDLULDDDDLLULLDUUURRLUDLDDRRDRUUUDRURRURDUUURDRRDDLDULRRUUUDLLULLDDDDLULDULLDLUUUUDRRRUDRLLLLDDDRURRRDRUUUURDDD

result:

ok Valid Solution (Length = 148).

Test #37:

score: 0
Accepted
time: 0ms
memory: 3628kb

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: 1ms
memory: 11916kb

input:

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

output:

UURRRDDDLDDDDLUULDDDUUUUURLDDRDDRDRUUURUUUURDDDDDDRDUUUUUUURRURDDLRDDDLDDRLLRDUUUULDUUDRDRUUUUULDLLUDDDDDDDLLDUUDRUUUUUULUDDDDDLDDDLUUUUUUDRUUULLDULDDDRRDDRRDDDLUDLLUUURDUUUUUULDDDLDDDDDULUUUUUURDUUDLLDDDDDDDULLDLUUUUURDRDUUDLUUUUDRLLRDDLDDDRLDDRURRUUUUUUUDRDDDDDDRUUUURUUURDRDDRDDLRUUUUUDDDLUULDDDDL...

result:

ok Valid Solution (Length = 308).

Test #39:

score: 0
Accepted
time: 1ms
memory: 11988kb

input:

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

output:

UUUUUUULDDDDDDDDDRURDUUUUUUUUUDDDDDDDDLDLLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUULDDDDDDDDDLUUUUUUUUUDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDUUUUURLLLLLLLLLLRUUUUUDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUUURDDDDDDDDDRUUUUUUUU...

result:

ok Valid Solution (Length = 422).

Test #40:

score: 0
Accepted
time: 1ms
memory: 9744kb

input:

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

output:

UUUUUUUURRDDLRDDLRDDLRDDLRUUUUUUUUUDLLLLDDRLDDRLDDRLDDRLLLUURLUURLUURLUURLLLLRDDRLLRDDRLLRDDRLLRDDRLLRUUUUUUUUUDRRUDDDDDDDDDRRUUUUUUUUUDRRUDDDDDDDDDUUUUUUUUUUDDDDDDDDDURRDUUUUUUUUURRDDDDDDDDDURRDUUUUUUUUURLLRDDRLLRDDRLLRDDRLLRDDRLLLLRUULRUULRUULRUULLLRDDLRDDLRDDLRDDLLLLDUUUUUUUUURLDDRLDDRLDDRLDDRRUU...

result:

ok Valid Solution (Length = 306).

Test #41:

score: 0
Accepted
time: 1ms
memory: 10036kb

input:

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

output:

RRRRDDLLLLLLLLLRRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDDRRRRRLLLLLUURRRRRRRRRRUULLLLLRRRRRDDLLLLLLLLLDDRRRRRRRRRDDLLLLLLLLLDURRRRRRRRRUULLLLLLLLLUURRRRRRRRRUULLLLLLLLLUURRRRRRRRRLLLLLLLLLDDRRRR

result:

ok Valid Solution (Length = 240).

Test #42:

score: 0
Accepted
time: 0ms
memory: 3816kb

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: 0ms
memory: 11908kb

input:

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

output:

RRDRUUUUULUULDDLLRUUUURRRDDRRUURRRDDDDDDDDDLUUULDDLLDUUURLDDRRDUUUUUULDLRURURDDUULDDDDRDDDRUUUUUUUUULLLLRDDLLUULLLLDDUURDDDDRDDRUDLLLRRUUUURDDRDDDDDLULLDLUDRUDRRRURRURRRDURDULDLLULDDDDDRDDRUUUURRLLLDURDDRDDDDRUUDDLLLLUULLDDRLLLLUUUUUUUUURDDDRDDDDLUUDDRURURLDLUUUUUUDRRDDLRUUUDLLDDLUUULDDDDDDDDDRRRUUR...

result:

ok Valid Solution (Length = 328).

Test #44:

score: 0
Accepted
time: 0ms
memory: 11860kb

input:

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

output:

ULUUUULDDDDDRLDDDRDRURUULRURUUUUURRDDLRDDDDLDLDDRRUDLLLRUURUUUDDRUUUUUULLLDDLUUDDRDUUURDDDDDLDDDLDLUUDLLULLUDRDDLRUURUULRUULLDUUUURLDDDRRUUDDDDDDDRUUUUUUUURDDDDRDULULURRRRULULUDRDDDDRUUUUUUUURDDDDDDDUURRDDDLRUUUUDLLUURLUURUURLDDRDULLULLDUULDLDDDLDDDDDRUUUDRDDUULDDLLLUUUUUURDDUUURUURLLLDURRDDLDLDDDDR...

result:

ok Valid Solution (Length = 338).

Test #45:

score: 0
Accepted
time: 0ms
memory: 3588kb

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: 0ms
memory: 22516kb

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:

UUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 1002).

Test #47:

score: 0
Accepted
time: 0ms
memory: 16012kb

input:

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

output:

UUUUUUUUUUUUULLDDRLDDRLDDRLDDRLDDRLDDRLDDDDDDRRUULRUULRDDDDLLLLUURLUURLUURLUURLUURLUURLUURLUURLUURLLLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLLLUURLUURLUURLUURLUURLUURLUURLUURLUURLLLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLLLUURLUURLUURLUURLUURLUURLUURLUURLUURLLLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLLLUURLUURLU...

result:

ok Valid Solution (Length = 1050).

Test #48:

score: 0
Accepted
time: 1ms
memory: 11900kb

input:

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

output:

RRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRUULLLLLLLLL...

result:

ok Valid Solution (Length = 840).

Test #49:

score: 0
Accepted
time: 0ms
memory: 3664kb

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: 20228kb

input:

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

output:

LUULLLRUURRUULLLRRRUULUUUUUURUURRRDDRRUURRDDLRDDDDDDLUULUURLLDDDDDDLUULUULDDDDDDRURDRDDDDLLRUULLRRDDRDDDRURUULRUUUURDDDDRDDRDUUURUUUULLDDRLUURUULLLLUUDDRRRUURRDDRRRRDDDDDDDDLLUURUUUULLDDRLUURRDDDDLLDDLUDRDUUURDDRRDUUUUUUUUUUUUUUUUUUULDDLUULDDDDDDLLLRUURLLRUURLLUURRLLDDRDDDDRRDDRUUUURDDDDUUUULUDDDDDL...

result:

ok Valid Solution (Length = 1126).

Test #51:

score: 0
Accepted
time: 2ms
memory: 13896kb

input:

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

output:

UUUUUUUUUULDDDDDLUUUUULDDDDLUUUULDDLDDDDDDDDDDDLUUUUUUUUUUULUURRLLLDDDDLUUUDDDRDDDDDDRUUUUUUUDDDDDDDLLDDDDDDDDDRUUUUUUURDDDDRURDDDDRUUURUUUUUUUUUURRLDDDDDDDDDDDRLLDDRRRURUUUUUUURUUURUULUUUUUURDDDDRUUUURDDDDDRUUUUUDDDDDLLRDDDDRUUDDLDLDLDLRDDDDDDRUUUUURURDDDDDDDLLRUUUUUDDDDDRUUUUUUUUDLDLDDDDDLLDLRUUUU...

result:

ok Valid Solution (Length = 1164).

Test #52:

score: 0
Accepted
time: 0ms
memory: 3596kb

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: 18204kb

input:

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

output:

DDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDRUUUUUUUUUUUUURDDDDDDDDDDDDDUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUUUUUUUULDDDDDDDDDDDDDLUUUUUUU...

result:

ok Valid Solution (Length = 1164).

Test #54:

score: 0
Accepted
time: 2ms
memory: 14356kb

input:

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

output:

UUUUUUUUULLDDRLDDRLDDRLDDRLDDDDDDDDDDRRUULRUULRUULRUURRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDDDDDDDRRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDRRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDRRUULRUULRUULRUULRUULRUULRUULRUULRUULRDDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 1178).

Test #55:

score: 0
Accepted
time: 1ms
memory: 9972kb

input:

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

output:

DRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDURRRRRR...

result:

ok Valid Solution (Length = 480).

Test #56:

score: 0
Accepted
time: 0ms
memory: 3548kb

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: 12064kb

input:

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

output:

UUULLDDDDDDDDDDDDLDDDDLLDLUUULUUUULUUUUUUUUUUUURRRDDLDDDDDDLDDRDDDDRRUURLLRUURLUULDDUUUUUURDDRDDUUUUUULRUURRRRRRRRRDDDDDDDDDDDDDDDDDDLLDUUULDDLDLUUURLLLLRDDRLLRDUUURRDDDRURUUUULLUUUULLDDRDDLRUULUUUURUURDDRDDRRUULRUULUURRDDDDDDUUUUUULUURLLLLRRRDDLLLRDDUURDDRDDDDLDDRRLDDRDDUULUULLRUULUULUULLUUDDRDDLDD...

result:

ok Valid Solution (Length = 1282).

Test #58:

score: 0
Accepted
time: 2ms
memory: 16068kb

input:

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

output:

DDDDLUUUULDLULDDDDDDDDDDDDDRUUUUUURURDDDDDDDDDDDRUUUUUUUUUUURUUUUUURDDDDDDDDDDDDDDDDDRUUURUUUULDDUUUURUUUUULDDDUUUUUURRRRDDDDDDDLULDDDDDDDDDDDRUUUUUURUURDDDDDLDDDRLUUUUUDDRUUUUUUUUUUUUUUDDDDDDDDDLLUDRDDLDDDDDDLLUUDDRUUUUUUUUUUURUUUULDDUURDDDDDRUUUUUUULLLDULDDDRDDDDDLDDRDDDDLDDDLLUUUUUUUUUUDDDDDDDDDD...

result:

ok Valid Solution (Length = 1324).

Test #59:

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

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: 0ms
memory: 22412kb

input:

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

output:

UUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDRUUURUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUURDDD...

result:

ok Valid Solution (Length = 1652).

Test #61:

score: 0
Accepted
time: 0ms
memory: 22276kb

input:

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

output:

UUUUUUUUUUUUUUUULLLRDDRLLRDDRLLRDDRLLRDDRLLRDDRLLRDDRLLRDDRLLRDDRLLRDDRRRRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDRRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDRRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDRRUULRUULRUU...

result:

ok Valid Solution (Length = 1222).

Test #62:

score: 0
Accepted
time: 2ms
memory: 16180kb

input:

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

output:

RDDLLLLLLLLLLLLLLLLLLLRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLUDRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRDDLLLLL...

result:

ok Valid Solution (Length = 980).

Test #63:

score: 0
Accepted
time: 0ms
memory: 3592kb

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: 18116kb

input:

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

output:

DDDDLLLDDDDDDDDLUUUUUULLLLLDDDDLUUUULDDLLLRUURLLRDDRDDRLLDDDDLUUUUDDDDRDDDDRRDUUUUULDDUUUURRRRUURRUURDDDDDDDDDDRDUUUUURDDDDRRUURUULLRRUULLRRUULUUUURRUURUULRUURRDDDDRDDLLLRRRDDDDDDDDDDDDDLULLLLRRDURRUULLLRUULUURUULRUURRDDLRDDDDLUUDDRUUUUUULLLLRUDRDDDDLDDRDDRRDDDRUUUUUUUUUUUUUUUUUUUDDDDLLUUDDRUUUULLLR...

result:

ok Valid Solution (Length = 1224).

Test #65:

score: 0
Accepted
time: 0ms
memory: 20384kb

input:

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

output:

UUUUUUUUUUUUULULDDDDRUUDDLDDDDDDDDDDLUUUULUUUUUUUULUURRDDDDDDDDUUUUUUUULLLDDLUULDDDLULUURLLDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUULDDDDDDDDDDLUUUUUUUULULDDDDRUUDDLLUUUUULDDDDLDDDDDDDDDDDDDDDRRUUULDUUUURDRUUUUURDDDDRURDDDDLULDDDDRURDULUDDLLUUUUDDDDRUUUURUDDRUUUULUDDLUUUULUURLLDDLUDRDDLRUUUUULRDRDDDDDDD...

result:

ok Valid Solution (Length = 1474).

Test #66:

score: 0
Accepted
time: 0ms
memory: 3656kb

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: 3ms
memory: 31160kb

input:

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

output:

UUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUUUUUUUUUUUDDDDDLDDDDDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDD...

result:

ok Valid Solution (Length = 3056).

Test #68:

score: 0
Accepted
time: 4ms
memory: 24464kb

input:

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

output:

UUUUUUUUUUUUUUULLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDDDDDDDDDDDDDRRUULRUULRUULRUULRUULRUULRDDDDDDDDDDDDLLLLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLLLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLLLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLUURLLLDDRLDDRLDDRLDDRLDDRLDDRLD...

result:

ok Valid Solution (Length = 2292).

Test #69:

score: 0
Accepted
time: 0ms
memory: 18508kb

input:

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

output:

RRRRRRRRRRRRRRRRRRRUDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 1854).

Test #70:

score: 0
Accepted
time: 0ms
memory: 3652kb

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: 0ms
memory: 18260kb

input:

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

output:

UUUUUULDDLUULDDLUULDDDDLUUUULDDLUULDDLDDDDDDLUUUUUULDDDDDDLDDLUULLUULLUULLUUUURDDRUURDDDDRUURUURRRRRLLLDDLRDDDDLLRUULUDRDDRUUUUUULLLRDDLDDLUUUULDDLUULLLLDDRRLLDDRRLLDDLUULUULUURRDDUULLLDDLUULDDUURDDRDDLLDDDDDDRRDDRRUULRUURRDDDDDDDDDDLLUURLLUURURDUUUUDDDLDLLDDDDRLDDLLDDDDDDRDDDRURRDUUUUURRUULLLLLRRRR...

result:

ok Valid Solution (Length = 2744).

Test #72:

score: 0
Accepted
time: 6ms
memory: 24864kb

input:

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

output:

UUUUULUUUUUUUULUUUUUUUUUUULDDDLDDRDDDDDLUUUDDDRDDDDDDDDDDDDDDDLUUUUUUUUUUUUUDDDDDDDDDDDDDRDDRUUURDDDRUURDRUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDRUUUUUUURDDDDDDDDDDDDDDDDDDLUUUUUUULDDDDDDDDDDDDDDDDDRUUUUUUUURDDDDRUUUUUUUUUUUUUUURUUUUUULDDDDUUUURURUUURDDDDDDDDDDLDDDLUUDDRDDDDDDLDDDDDDDDDDRUUUUUUUURUUUUUU...

result:

ok Valid Solution (Length = 3398).

Test #73:

score: 0
Accepted
time: 0ms
memory: 3616kb

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: 22992kb

input:

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

output:

UUUUUUULDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUURUUUUUUUURDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLLUUUUUUUUUUUDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUULDDDDDDDDLDDDDDDDDDDDDLLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 2560).

Test #75:

score: 0
Accepted
time: 3ms
memory: 20620kb

input:

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

output:

LUUUUUUUUUUUUUULLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDDDDDRRUULRUURRUUUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDDDRRUULRUULRUULRUULRUULRUULRUULRUULRUULRUULRDDDDDDDDDDDDDDDDDDDDLLLLLRUURLLRUDDDRRUUUUUUUUUUUUUUUUUUUULLLRDDDDDDDDDDDDDDDDLLLRUDDDDDLLLLUURLUURLUURLUURLUURLUURLUURLUURLUURLUUR...

result:

ok Valid Solution (Length = 1946).

Test #76:

score: 0
Accepted
time: 0ms
memory: 12040kb

input:

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

output:

RUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRDDLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDRRRRRRRRRRRRRRRRRRRR...

result:

ok Valid Solution (Length = 1446).

Test #77:

score: 0
Accepted
time: 0ms
memory: 3588kb

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: 0ms
memory: 26920kb

input:

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

output:

UUULDDDUUURUULRUULRUUUUUULDDDDUUUURUULRUULRUURRDDLDDRRUUUURDDRUUUUUUURDRURDDDLLRDDLRDDLRDDDDLLLDDLDDDDLLDDDDRUURRDDDDRUURUULUULRUULRUURDDRDDLRDDDDRUURUULUUUURRDDRRUULRUUUULLUULUURRUUUULLDDRLUURRURDDDDDRUURUURURDRURDDDLLLUDRRDDDDLLDDRDDLLLRRRDDDDDDDDDDLUULUURUULLRRUULLRRDDDDLLLLLRRUDRDDDDDDRRRRUURUUL...

result:

ok Valid Solution (Length = 2268).

Test #79:

score: 0
Accepted
time: 0ms
memory: 22620kb

input:

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

output:

ULUUULDDLULDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUURUUUUUUUUURDDDDDDRUUURUUUUUUURDDDDDDDDDDDDDDDDDDDLUUUUUUUULDDDDDDDLUUUULDDDUUURUUDDDDDDRDDDDDLUUULDDDDUUUURDDDRDRUUURDDDRUUUURUUUUUUUUUULDDDDDDDDUUUUUUUUUUUUUUUUUURDRURDDDDDDDDDDDDDDDDDDDLDDDDDRUUUDDDLLUUUDDDRUUUUUUUUUUUUUUUUULDURUULUURUDLDDRDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 2836).

Test #80:

score: 0
Accepted
time: 0ms
memory: 3668kb

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: 4ms
memory: 31596kb

input:

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

output:

UUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUURUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUUUUUUUUUUUUUUUUUUUUUUUUUUURDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRUUUU...

result:

ok Valid Solution (Length = 3688).

Test #82:

score: 0
Accepted
time: 4ms
memory: 20764kb

input:

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

output:

UUUUUUUUUUUUUUUUUULLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDRLDDDDDDDDDDRRUULRUULRUULRUURRUULRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDDDDDDDRRUULRUULRUULRUULRUULRUULRUULRUULRUULRUULRUULRUULRUULRUURRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDLRDDRRUULRUULRUULRUU...

result:

ok Valid Solution (Length = 2732).

Test #83:

score: 0
Accepted
time: 5ms
memory: 18320kb

input:

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

output:

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLLLLLLLLLLUURRRRRRRRRRRRRRRRRRRRRRRRRRRRRUULLLLLLLLLLLLLLLLLLLLL...

result:

ok Valid Solution (Length = 2320).

Test #84:

score: 0
Accepted
time: 0ms
memory: 3552kb

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: 0ms
memory: 22480kb

input:

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

output:

DDRUUUURDDRRUURDDRDDDDLDDLUULLLLLDDRRRRLLLLUURRUDRRRUURLLLRRDDDDRDDLLLLDDDDLLDDRDDLDDRDDLDDRDDLRDDRUURDDDRUUURRRDDRUURUULLUUUUUUUUUUUURUULUURRUURDDRRRDDLLDDLLDDLRDDRUURDDRRUUUURRUULUURRUULUUUULLUURRRDDRDDLRDDDDDDLRDDLRDDLLDDRDDDDDDLUUUULLLLLLLRRDDDDRDDDDRUURDDDDRUURDDDRUUURUULLLRRRUUUUUUUURDDDDRRUUR...

result:

ok Valid Solution (Length = 2734).

Test #86:

score: 0
Accepted
time: 5ms
memory: 28840kb

input:

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

output:

UUUUUUUUUUUUUUUUUULDDDDDDLUUUUUULDDDDDDLUUULUUURDULLDLULLLDDDDDDDDDDDDDDDDLUUUULDDDDDRLDDDDDDDDDDDDRUUUUUUUUUURURUUUUUUUUUUUUUUURDDDDDDDDRUURURURDDDDDDDDDDDDDDDDDDDLULUUUURDDUULLUUUUURDDDRUUUUDDDDLUUULUUULDDDDDDDDDDDDLDDDDRUURURDDDRURDRUUUUUUUUUUUUUURUUULDURUUUURDDDDDDDDDDDDDDLDDDDDDRUUUURUUUUURDDDD...

result:

ok Valid Solution (Length = 3388).

Test #87:

score: 0
Accepted
time: 0ms
memory: 3660kb

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: 0ms
memory: 30728kb

input:

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

output:

UUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRLLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDDLUUUUUUUUUUUUUUUUUUUUUUUUUUUUULDDDDDDDDDDDDDDDDDDDDDDDDDDDDD...

result:

ok Valid Solution (Length = 3658).

Extra Test:

score: 0
Extra Test Passed