oj.uz

Submission #852284

# Submission time Handle Problem Language Result Execution time Memory
852284 2023-09-21T14:16:20 Z Trisanu_Das Naboj (COCI22_naboj) C++17
110 / 110
 248 ms 20268 KB 
#include <bits/stdc++.h>
using namespace std;

int main(){
    ios::sync_with_stdio(false); cin.tie(NULL);
    int n, m;
    cin >> n >> m;
    vector<int> deg(n + 1), adj[n + 1], topo;
    int a, b;
    while(m--){
        cin >> a >> b;
        deg[b]++;
        adj[a].push_back(b);
    }
    queue<int> q;
    for(int i = 1; i <= n; i++) if(deg[i] == 0) q.push(i);
    while(!q.empty()){
        int u = q.front(); q.pop();
        topo.push_back(u);
        for(auto v : adj[u]){
            deg[v]--;
            if(deg[v] == 0) q.push(v);
        }
    }
    if(topo.size() != n) cout << -1;
    else {
      cout << n << '\n'; 
      for(auto x : topo) cout << x << ' ' << 0 << '\n';
    }
}

Compilation message

naboj.cpp: In function 'int main()':
naboj.cpp:25:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   25 |     if(topo.size() != n) cout << -1;
      |        ~~~~~~~~~~~~^~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 12804 KB Output is correct
2 Correct 84 ms 15372 KB Output is correct
3 Correct 33 ms 8144 KB Output is correct
4 Correct 74 ms 15304 KB Output is correct
5 Correct 101 ms 15304 KB Output is correct
6 Correct 95 ms 15304 KB Output is correct
7 Correct 85 ms 15328 KB Output is correct
8 Correct 71 ms 12036 KB Output is correct
9 Correct 89 ms 15308 KB Output is correct
10 Correct 104 ms 15648 KB Output is correct

Subtask #3
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 85 ms 12804 KB Output is correct
16 Correct 84 ms 15372 KB Output is correct
17 Correct 33 ms 8144 KB Output is correct
18 Correct 74 ms 15304 KB Output is correct
19 Correct 101 ms 15304 KB Output is correct
20 Correct 95 ms 15304 KB Output is correct
21 Correct 85 ms 15328 KB Output is correct
22 Correct 71 ms 12036 KB Output is correct
23 Correct 89 ms 15308 KB Output is correct
24 Correct 104 ms 15648 KB Output is correct
25 Correct 98 ms 13648 KB Output is correct
26 Correct 107 ms 15456 KB Output is correct
27 Correct 91 ms 16584 KB Output is correct
28 Correct 152 ms 18000 KB Output is correct
29 Correct 79 ms 15060 KB Output is correct
30 Correct 125 ms 18164 KB Output is correct
31 Correct 14 ms 2688 KB Output is correct
32 Correct 79 ms 14788 KB Output is correct
33 Correct 128 ms 19388 KB Output is correct
34 Correct 111 ms 15352 KB Output is correct
35 Correct 150 ms 19520 KB Output is correct
36 Correct 76 ms 14604 KB Output is correct
37 Correct 125 ms 18436 KB Output is correct
38 Correct 100 ms 17156 KB Output is correct
39 Correct 131 ms 19188 KB Output is correct
40 Correct 119 ms 17924 KB Output is correct
41 Correct 151 ms 17912 KB Output is correct
42 Correct 192 ms 19912 KB Output is correct
43 Correct 107 ms 15860 KB Output is correct
44 Correct 248 ms 20268 KB Output is correct
45 Correct 78 ms 15124 KB Output is correct
46 Correct 114 ms 17940 KB Output is correct