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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#242794#7738. Equivalent Rewriting568915433WA 1ms5964kbC++141.3kb2023-11-07 17:16:422023-11-07 17:16:43

Judging History

你现在查看的是最新测评结果

  • [2023-11-07 17:16:43]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5964kb
  • [2023-11-07 17:16:42]
  • 提交

answer

#include "bits/stdc++.h"

#define endl "\n"

using namespace std;

vector<int> v[100005];
int u[100005]={0};

int n,m;

bool check(int e){

    fill(u,u+(m+2),0);
    for (int i = 0; i < v[e].size(); ++i) {
        int x = v[e][i];
        u[x]=1;
    }
    for (int i = 0; i < v[e-1].size(); ++i) {
        int x = v[e-1][i];
        if(u[x]==1)return false;
    }
    return true;
}

void so(){

    int ac=-1;

    cin>>n>>m;
    for (int i = 0; i < n; ++i) {
        v[i].clear();
    }

    for (int i = 0; i < n; ++i) {
        int k;
        cin>>k;
        for (int j = 0; j < k; ++j) {
            int a;
            cin>>a;
            v[i].push_back(a);
        }
    }

    for (int i = 1; i < n; ++i) {

        if(check(i)){
            ac=i;
            break;
        }

    }

    if(ac==-1){
        cout<<"No\n";
    }else{
        cout<<"Yes\n";
        for (int i = 1; i <= n; ++i) {
            if(i==ac){
                cout<<ac+1<<" "<<ac;
                i++;
            }else{
                cout<<i;
            }
            if(i!=n){
                cout<<" ";
            }
        }
        cout<<endl;
    }

}

int main(){

    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int t;
    cin>>t;
    while (t--)so();



}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 5964kb

input:

3
3 6
3 3 1 5
2 5 3
2 2 6
2 3
3 1 3 2
2 3 1
1 3
2 2 1

output:

Yes
1 3 2
No
No

result:

ok OK. (3 test cases)

Test #2:

score: -100
Wrong Answer
time: 0ms
memory: 5924kb

input:

1
10 5
2 2 4
4 1 3 4 2
1 2
3 2 1 4
4 5 2 4 3
3 2 5 4
3 5 4 2
3 1 3 2
5 1 4 2 3 5
1 4

output:

No

result:

wrong answer jury found an answer but participant did not (test case 1)