QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#581710 | #7900. Gifts from Knowledge | ggggggg | WA | 40ms | 28388kb | C++14 | 1.1kb | 2024-09-22 13:57:55 | 2024-09-22 13:57:58 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=1000005,P=1e9+7;
int r,c,col[N];
vector<int> G[N];
int dfs(int u){
for(auto v:G[u]){
if(!col[v]) col[v]=3-col[u],dfs(v);
else if(col[v]+col[u]!=3) return 1;
}
return 0;
}
void solve(){
scanf("%d%d",&r,&c);
string b[r];
for(int i=0;i<r;i++) cin>>b[i];
int ct=0;
if(c%2==1){
for(int i=0;i<r;i++) ct+=(b[i][(c+1)/2-1]=='1');
if(ct>1) return puts("0"),void();
}
for(int i=0;i<r;i++) G[i].clear();
for(int i=0;i<(c/2);i++){
vector<int> v;
for(int j=0;j<r;j++){
if(b[j][i]=='1') v.push_back(j);
if(b[j][c-1-i]=='1') v.push_back(j);
if(v.size()>2) return puts("0"),void();
}
if(v.size()==2&&v[0]!=v[1]) G[v[0]].push_back(v[1]),G[v[1]].push_back(v[0]);
}
for(int i=0;i<r;i++) col[i]=0;
int as=1;
for(int i=0;i<r;i++) if(!col[i]){
col[i]=1,as=2ll*as%P;
if(dfs(i)) return puts("0"),void();
}
printf("%d\n",as);
}
int main(){
int T;
scanf("%d",&T);
while(T--) solve();
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 28236kb
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: 40ms
memory: 28388kb
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: 28348kb
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 2380th numbers differ - expected: '0', found: '4'