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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#360988#6746. Merge the RectanglessacaveAC ✓53ms25788kbC++142.7kb2024-03-22 17:22:092024-03-22 17:22:10

Judging History

你现在查看的是最新测评结果

  • [2024-03-22 17:22:10]
  • 评测
  • 测评结果:AC
  • 用时:53ms
  • 内存:25788kb
  • [2024-03-22 17:22:09]
  • 提交

answer

#include<bits/stdc++.h>
#define endl "\n"
#define x first
#define y second
#define no cout << "No" << endl
#define yes cout << "Yes" << endl

using namespace std;
typedef long long ll;
typedef pair<int,int> PII;

const int N = 1510;
const int inf = 0x3f3f3f3f;
const ll lnf = 1e18;

int T,n,m;
int dx[4] = {0,1,-1,0},dy[4] = {1,0,0,-1};
string a[N],b[N];
int hen[N][N],shu[N][N];
bool flag = 1;
set<tuple<int,int,int,int>> st;


void dfs(int x1,int y1,int x2,int y2){
	// if(mp.count({{x1,y1},{x2,y2}})) return ;
	// mp[{{x1,y1},{x2,y2}}] = 1;
	if(x1 == x2 || y1 == y2) return ;
	// cout << x1 << ' ' << y1 << ' ' << x2 << ' ' << y2 << endl;
	// if(st.find({x1,y1,x2,y2}) != st.end()) return ;
	// st.insert({x1,y1,x2,y2});
	bool t = 0;
	for(int i=x1+1;i<x2;i++){
		// cout << hen[i][y2] - hen[i][y1] << endl;
		if(hen[i][y2] - hen[i][y1] == y2 - y1){
			// cout << "YES" << endl;
			dfs(x1,y1,i,y2);
			dfs(i,y1,x2,y2);
			return ;
			// t = 1;
		}
	}
	for(int i=y1+1;i<y2;i++){
		if(shu[x2][i] - shu[x1][i] == x2 - x1){
			dfs(x1,y1,x2,i);
			dfs(x1,i,x2,y2);
			return ;
			// t = 1;
			// return ;
		}
	}
	if(t) return ;
	// cout << endl;
	for(int i=x1;i<=x2;i++){
		int d = hen[i][y2] - hen[i][y1];
		// cout << d <</ endl;
		if(d >= 1 && d != y2 - y1) flag = 0;
		// if(!flag){
			// cout << "row : " << i << endl;
			// cout << x1 << ' ' << y1 << ' ' << x2 << ' ' << y2 << endl;
			// exit(0);
		// }
	}
	for(int i=y1;i<=y2;i++){
		int d = shu[x2][i] - shu[x1][i];
		// cout << d << endl;
		if(d >= 1 && d != x2 - x1) flag = 0;
		// if(!flag){
			// cout << "col : " << i << endl;
			// cout << x1 << ' ' << y1 << ' ' << x2 << ' ' << y2 << endl;
			// exit(0);
		// }
	}
}

void solve(){
	cin >> n >> m;
	for(int i=1;i<n;i++) cin >> a[i] ,a[i] = 'a' + a[i];
	for(int i=1;i<=n;i++) {
		cin >> b[i];
		b[i] = '1' + b[i];
	}
	for(int i=1;i<n;i++){
		for(int j=1;j<=m;j++){
			hen[i][j] = a[i][j] - '0';
			hen[i][j] += hen[i][j-1]; 
		}
	}
	for(int j=1;j<m;j++){
		for(int i=1;i<=n;i++){
			shu[i][j] = b[i][j] - '0';
			shu[i][j] += shu[i-1][j];
		}
	}
	// for(int i=1;i<=n;i++) hen[i][m] += hen[i][m-1];
	// for(int i=1;i<=m;i++) shu[n][i] += shu[n-1][i];
	
	// for(int i=0;i<=n;i++){
		// for(int j=0;j<=m;j++){
			// cout << hen[i][j] << ' ';
		// }
		// cout << endl;
	// }
	// cout << endl;
	// for(int i=0;i<=n;i++){
		// for(int j=0;j<=m;j++){
			// cout << shu[i][j] << ' ';
		// }
		// cout << endl;
	// }
	// cout << endl;
	
	dfs(0,0,n,m);
	if(flag) cout << "YES" << endl;
	else cout << "NO" << endl;
}

int main()
{
	ios_base::sync_with_stdio(false), cin.tie(nullptr);
	solve();
	
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3940kb

input:

3 4
0000
0111
101
101
110

output:

YES

result:

ok answer is YES

Test #2:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

3 3
110
011
01
11
10

output:

NO

result:

ok answer is NO

Test #3:

score: 0
Accepted
time: 12ms
memory: 25556kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #4:

score: 0
Accepted
time: 35ms
memory: 25724kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #5:

score: 0
Accepted
time: 19ms
memory: 25588kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #6:

score: 0
Accepted
time: 24ms
memory: 25564kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #7:

score: 0
Accepted
time: 28ms
memory: 25776kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #8:

score: 0
Accepted
time: 12ms
memory: 25592kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #9:

score: 0
Accepted
time: 15ms
memory: 25652kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #10:

score: 0
Accepted
time: 42ms
memory: 25740kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #11:

score: 0
Accepted
time: 42ms
memory: 25736kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #12:

score: 0
Accepted
time: 30ms
memory: 25780kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #13:

score: 0
Accepted
time: 41ms
memory: 25628kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #14:

score: 0
Accepted
time: 39ms
memory: 25688kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #15:

score: 0
Accepted
time: 31ms
memory: 25756kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #16:

score: 0
Accepted
time: 37ms
memory: 25552kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #17:

score: 0
Accepted
time: 39ms
memory: 25636kb

input:

1500 1500
01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #18:

score: 0
Accepted
time: 38ms
memory: 25788kb

input:

1500 1500
10111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #19:

score: 0
Accepted
time: 41ms
memory: 25768kb

input:

1500 1500
01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #20:

score: 0
Accepted
time: 36ms
memory: 25624kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #21:

score: 0
Accepted
time: 30ms
memory: 25612kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #22:

score: 0
Accepted
time: 42ms
memory: 25708kb

input:

1500 1500
01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #23:

score: 0
Accepted
time: 32ms
memory: 25688kb

input:

1500 1500
10111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #24:

score: 0
Accepted
time: 37ms
memory: 25644kb

input:

1500 1500
01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #25:

score: 0
Accepted
time: 33ms
memory: 25628kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #26:

score: 0
Accepted
time: 36ms
memory: 25684kb

input:

1500 1500
01111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #27:

score: 0
Accepted
time: 41ms
memory: 25724kb

input:

1500 1500
11011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #28:

score: 0
Accepted
time: 23ms
memory: 25556kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #29:

score: 0
Accepted
time: 26ms
memory: 25784kb

input:

1500 1500
00010000000000011110111101011011110011001110011110011101111011110111000111000110001101111011110101100011011110111101000011110111101110011110000001111011110111101111011100111100110000010110101111011110110000000001100011101111011000011001111011100110001111011110011101111011110111100000011110...

output:

YES

result:

ok answer is YES

Test #30:

score: 0
Accepted
time: 34ms
memory: 25536kb

input:

1500 1500
11100111101111011110000101000011110011101111001000001101111011110111000100011110110100101000000011001110000110111101110011110111101111011110111001000011110110001111001010110000011011110110001111010010111101111011110111000000001110111101111001010111000111000000110000000011000111000001011110...

output:

YES

result:

ok answer is YES

Test #31:

score: 0
Accepted
time: 33ms
memory: 25584kb

input:

1500 1500
11110111101111011110111101111001110000000111011110111101110011100111101101011000111100000000000111101111011110000001110000010111101000011100111101101001100110001111011110100001111011110101101110011000000001110011110111101110001100111101111011110000100000011010111101111011010111101110000000...

output:

YES

result:

ok answer is YES

Test #32:

score: 0
Accepted
time: 31ms
memory: 25712kb

input:

1500 1500
11100000000000000011100000000000000000000001110000000000000000000000000000000000000000000000001110000000000000000000000000001110000000000000000000011100000000111100000011100000011100000000000000000000000000000000000000000011100000000000000000000000001111000000000000000000000000000000000000...

output:

NO

result:

ok answer is NO

Test #33:

score: 0
Accepted
time: 33ms
memory: 25588kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000111000000000000000000000000000000000000000000000000011100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #34:

score: 0
Accepted
time: 31ms
memory: 25776kb

input:

1500 1500
00011100000001111000000000000011111100000000000000000000000000000000111000000011100000000001110000111111000000000000000001111000000000000000011110000000000000000000000000000000000000111111001110000000000000001111000000000000000111000000000000000000000000000000111000000000000111000000000000...

output:

YES

result:

ok answer is YES

Test #35:

score: 0
Accepted
time: 28ms
memory: 25676kb

input:

1500 1500
00000000000000000011100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001110000000000000000000000000000000011110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011100000...

output:

NO

result:

ok answer is NO

Test #36:

score: 0
Accepted
time: 26ms
memory: 25668kb

input:

1500 1500
00000000011100111100000000000000000000000000000000000000000000000000000111000000000000001110001110000000000001111111101110000000000000000000001111000000011100000000000000000000000000000000000000000011100000111000000000000000001111000000000000000000000000000000000011111000000000000000000000...

output:

NO

result:

ok answer is NO

Test #37:

score: 0
Accepted
time: 34ms
memory: 25588kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000001110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011100000000000000000000000...

output:

YES

result:

ok answer is YES

Test #38:

score: 0
Accepted
time: 35ms
memory: 25564kb

input:

1500 1500
00001110000000000000000011100000000000000000000000000000000111100000000000001111000111000000000000000000000000111000000000000000000000000000000000000000000000000000000000011100000000000000000000000000000111000000000000000000000011100000000011100000000000000001110000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #39:

score: 0
Accepted
time: 30ms
memory: 25564kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000111000000000000000000000000111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

NO

result:

ok answer is NO

Test #40:

score: 0
Accepted
time: 30ms
memory: 25604kb

input:

1500 1500
00000000000000011100000000000000000000000000000000000000011100000011100000000000000011100011100000000000000000000000000000000000000000000000000000111000000001111000000000000000000000000000001111000001110000000000000000001110000000000000000000000000000000000000001111011100011100000000000000...

output:

NO

result:

ok answer is NO

Test #41:

score: 0
Accepted
time: 29ms
memory: 25600kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #42:

score: 0
Accepted
time: 28ms
memory: 25536kb

input:

1500 1500
00011100000001111111000001111111000011110000000111000000000000011100000000111000000000000000001111000000000000000000000000000000011111000011110000000000000111100000000000001110000000011100001111000000001111000000000001111011110000000000000000000000000000011110000000000000000000000001110000...

output:

YES

result:

ok answer is YES

Test #43:

score: 0
Accepted
time: 30ms
memory: 25708kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000001110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011100000000000000000000000000000001110000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

NO

result:

ok answer is NO

Test #44:

score: 0
Accepted
time: 21ms
memory: 25580kb

input:

1500 1500
00001110001110000011110000001111111000000000000111000001110000000000000000000000000000111000000000001110000000011111001111000000000000000000011110000000000111000000001111100000001111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011100000...

output:

NO

result:

ok answer is NO

Test #45:

score: 0
Accepted
time: 26ms
memory: 25600kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #46:

score: 0
Accepted
time: 30ms
memory: 25556kb

input:

1500 1500
00000000000000000000000000000000000001110000000000000000000000000000001110000000000000011100000000000000000111100000000000000000001111000000011100000000000000111100000000000000001110000000000000000000111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #47:

score: 0
Accepted
time: 36ms
memory: 25584kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000011100000000000000001110000000000001110000000000000000001110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011100...

output:

NO

result:

ok answer is NO

Test #48:

score: 0
Accepted
time: 17ms
memory: 25584kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #49:

score: 0
Accepted
time: 13ms
memory: 25548kb

input:

1500 1500
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

YES

result:

ok answer is YES

Test #50:

score: 0
Accepted
time: 16ms
memory: 14844kb

input:

750 1500
111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #51:

score: 0
Accepted
time: 16ms
memory: 23712kb

input:

1500 750
111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

NO

result:

ok answer is NO

Test #52:

score: 0
Accepted
time: 12ms
memory: 14524kb

input:

750 1500
111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #53:

score: 0
Accepted
time: 16ms
memory: 23688kb

input:

1500 750
111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #54:

score: 0
Accepted
time: 25ms
memory: 25652kb

input:

1500 1500
11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

YES

result:

ok answer is YES

Test #55:

score: 0
Accepted
time: 53ms
memory: 25716kb

input:

1500 1500
01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101...

output:

YES

result:

ok answer is YES

Test #56:

score: 0
Accepted
time: 51ms
memory: 25648kb

input:

1500 1500
11111111111110110001100000101100100110111111010111111011000111100111111111101111111110011111111111110101111111111111011111111111111111111100001100000001011001011001100001111100110000000000111111111111111111111111111111111111110111111111111111111111111000111111111111000110000011111111100011...

output:

YES

result:

ok answer is YES

Test #57:

score: 0
Accepted
time: 41ms
memory: 25552kb

input:

1500 1500
01101111111000011111111111111111111110011110011101111110000111111001111111111111111111111111111101111011101101111110001101111100001111111111111111111111000001100000110111111111110011001101111111111011100001011111100111101100001111111111111111100001111111111111011111000111111111111111101110...

output:

YES

result:

ok answer is YES