oj.uz

Submission #847092

# Submission time Handle Problem Language Result Execution time Memory
847092 2023-09-09T06:48:06 Z Pacybwoah Naboj (COCI22_naboj) C++17
0 / 110
 156 ms 15288 KB 
#include<iostream>
#include<vector>
#include<queue>
#include<utility>
#include<algorithm>
using namespace std;
int main(){
    int n,m;
    cin>>n>>m;
    vector<int> deg(n+1);
    vector<vector<int> > graph(n+1);
    int a,b;
    for(int i=0;i<m;i++){
        cin>>a>>b;
        deg[b]++;
        graph[a].push_back(b);
    }
    vector<int> topo;
    queue<int> q;
    for(int i=1;i<=n;i++) if(deg[i]==0) q.push(i);
    while(!q.empty()){
        int node=q.front();
        q.pop();
        topo.push_back(node);
        for(auto x:graph[node]){
            deg[x]--;
            if(deg[x]==0) q.push(x);
        }
    }
    if(topo.size()!=n) cout<<-1;
    else for(auto x:topo) cout<<x<<' '<<0<<"\n";
}

Compilation message

naboj.cpp: In function 'int main()':
naboj.cpp:30:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |     if(topo.size()!=n) cout<<-1;
      |        ~~~~~~~~~~~^~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 436 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 436 KB Output is correct
8 Incorrect 0 ms 432 KB Integer parameter [name=c] equals to 0, violates the range [1, 10]
9 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 156 ms 15288 KB Integer parameter [name=c] equals to 0, violates the range [1, 200000]
2 Halted 0 ms 0 KB -

Subtask #3
0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 436 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 436 KB Output is correct
8 Incorrect 0 ms 432 KB Integer parameter [name=c] equals to 0, violates the range [1, 10]
9 Halted 0 ms 0 KB -