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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#623783#7900. Gifts from KnowledgeEmotion_ZWA 19ms40996kbC++202.0kb2024-10-09 13:59:302024-10-09 13:59:36

Judging History

你现在查看的是最新测评结果

  • [2024-10-09 13:59:36]
  • 评测
  • 测评结果:WA
  • 用时:19ms
  • 内存:40996kb
  • [2024-10-09 13:59:30]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define deg( x ) cout<<""#x"="<<x<<endl
#define endl '\n'
#define pll pair<int,int>
#define fr frist
#define se second

const int N=1e6+10;
const int mod=1e9+7;

string S[ N ];

int A[ N ];

int dis[ N*2 ];

void init( int n ){
	for( int i=1; i<=n; i++ ) dis[ i ]=i;
}

int find( int x ){
	if( x==dis[ x ] ) return x;
	dis[ x ]=find( dis[ x ] );
	return find( dis[ x ] );
}

void add( int i , int j ){
	int a=find( i ) , b=find( j );
	dis[ a ]=b;
}

vector<int> G[ N ];

void solve(  ){
	int n,m;
	cin>>n>>m;
	
	for( int i=1; i<=m; i++ ) G[ i ].clear();
	for( int i=1; i<=m; i++ ) A[ i ]=0;
	init( n*2 );
	
	for( int i=1; i<=n; i++ ){
		cin>>S[ i ];
		for( int j=0; j<m; j++ ){
			if( S[ i ][ j ]=='1' ){
//                G[ m-j ].emplace_back( i );
				G[ j+1 ].emplace_back( i );
			}
		}
	}
	
	bool ok=false;
	for( int i=1; i<=m; i++ ){
		for( int e=1; e<G[ i ].size(); e++ ){
			int a=G[ i ][ 0 ] , b=G[ i ][ e ];
			add( a+n , b ) , add( a , b+n );
		}
	}
	
	for( int i=1; i<=n; i++ ){
		reverse( S[ i ].begin() , S[ i ].end() );
		for( int e=0; e<m; e++ ){
			if( S[ i ][ e ]=='1' ){
				for( auto son:G[ e+1 ] ){
					if( son==i ) continue;
					add( son+n , i+n );
				}
			}
		}
		reverse( S[ i ].begin() , S[ i ].end() );
	}
	
	for( int i=1; i<=n; i++ ){
		if( find( i )==find( i+n ) ) ok=true;
	}
	
	if( ok ) cout<<0<<endl;
	else {
		int ans = 1;
		init( n );
		
		for( int i=1; i<=n; i++ ){
			for( int j=0; j<m; j++ ){
				if( S[ i ][ j ]=='1' ){
					G[ m-j ].emplace_back( i );
				}
			}
		}
		
		for( int i=1; i<=m; i++ ){
			for( int j=1; j<G[ i ].size(); j++ ){
				add( G[ i ][ j ] , G[ i ][ 0 ] );
			}
		}
		
		for (int i = 1; i <= n; i++) {
			if ( dis[ i ] == i ) {
				ans *= 2, ans %= mod;
			}
		}
		cout << ans << endl;
	}
	
}

signed main() {
	ios::sync_with_stdio( 0 );
	cin.tie( 0 ); cout.tie( 0 );
	
	int T=1;
	cin>>T;
	
	while( T-- ){
		solve(  );
	}
	
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 7ms
memory: 39688kb

input:

3
3 5
01100
10001
00010
2 1
1
1
2 3
001
001

output:

4
0
2

result:

ok 3 number(s): "4 0 2"

Test #2:

score: 0
Accepted
time: 18ms
memory: 40036kb

input:

15613
10 10
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
15 8
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
1 5
00000
5 9
000000000
000000000
0000...

output:

1024
32768
2
32
32768
128
32
16
16
2
16384
16384
128
128
32768
8192
128
64
16384
2
4
2
4096
16
4096
1024
32768
32768
16384
8
128
2
16
4096
8192
32768
8192
8192
16
16384
16384
256
128
8
256
8
4096
512
2
4
32
32
2
64
512
1024
32768
32768
2
64
16384
16
8192
16
256
16
64
8192
8192
64
1024
2
32768
2
4
51...

result:

ok 15613 numbers

Test #3:

score: -100
Wrong Answer
time: 19ms
memory: 40996kb

input:

15759
9 6
000000
000000
000000
000000
000000
000000
000000
000000
000000
5 15
010000000000000
000000000000000
000000000000000
000100000000000
000100000000000
14 12
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000...

output:

512
16
16384
512
1024
4096
32768
4
2
512
512
512
512
8
2
256
16
4096
512
64
16
4096
512
32
32768
8192
32
2048
128
16
4096
64
32768
256
32
16384
8
512
32
2048
8
16
1024
2048
128
64
32
8
512
8
8192
256
8192
32768
2
8
512
512
256
32
2
2048
8192
8
64
8
2
16384
32768
32768
1024
4096
16384
16384
128
256
4...

result:

wrong answer 4020th numbers differ - expected: '0', found: '512'