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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#619999#7900. Gifts from KnowledgeOrthosWA 35ms28908kbC++172.5kb2024-10-07 16:15:522024-10-07 16:15:52

Judging History

你现在查看的是最新测评结果

  • [2024-10-07 16:15:52]
  • 评测
  • 测评结果:WA
  • 用时:35ms
  • 内存:28908kb
  • [2024-10-07 16:15:52]
  • 提交

answer

#include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int t;
ll r,c;
string s;
ll ans;
const ll mod=1e9+7;
vector<char> ve[1000005];
int f[1000005];
void init(){
    for(int i=0;i<=2*r-1;i++){
        f[i]=i;
    }
}
int find(int x){
    return f[x]!=x?f[x]=find(f[x]):x;
}
void merge(int x,int y){
    int u=find(x),v=find(y);
    if(u!=v){
        f[v]=u;
    }
    return;
}
void Clear(){
    for(int i=0;i<r;i++){
        ve[i].clear();
    }
}
void solve(){
    cin>>r>>c;
    init();
    ans=1;
    for(int i=0;i<r;i++) {
        cin >> s;
        for (int j = 0; j < c; j++) {
            ve[i].push_back(s[j]);
        }
    }
    for(int i=0;i<(c+1)/2;i++){
        int f1=-1,f2=-1;
        for(int j=0;j<r;j++){
            if(ve[j][i]=='1'){
                if(f1==-1){
                    f1=j;
                }
                else if(f2==-1){
                    f2=j;
                }
                else{
                    cout<<"0\n";
                    Clear();
                    return;
                }
            }
            if(ve[j][c-i-1]=='1'&&c-i-1!=i){
                if(f1==-1){
                    f1=j;
                }
                else if(f2==-1){
                    f2=j;
                }
                else{
                    cout<<"0\n";
                    Clear();
                    return;
                }
            }
        }
        if(c-i-1==i){
            if(f2!=-1){
                cout<<0<<"\n";
                Clear();
                return;
            }
//            for(int i=1;i<=r;i++){
//                ans=ans*2%mod;
//            }
//            cout<<ans<<"\n";
//            Clear();
//            return ;
        }
        if(f1!=-1&&f2!=-1){
            if(f1==f2){
                merge(f1,f1);
                merge(f1+r,f1+r);
            }
            else{
                merge(f1,f2+r);
                merge(f1+r,f2);
            }
        }
    }
    for(int i=0;i<r;i++){
        if(find(i)==i+r){
            cout<<0<<"\n";
            Clear();
            return;
        }
    }
    int count=0;
    for(int i=0;i<=2*r-1;i++){
        if(find(i)==i){
            count++;
        }
    }
    for(int i=1;i<=count/2;i++){
        ans=ans*2%mod;
    }
    cout<<ans<<"\n";
    Clear();
    return;
}
int main() {
//    ios::sync_with_stdio(0);
//    cin.tie(0);
    cin>>t;
    while(t--){
        solve();
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 28120kb

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: 31ms
memory: 28908kb

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: 35ms
memory: 27776kb

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'