oj.uz

Submission #783714

# Submission time Handle Problem Language Result Execution time Memory
783714 2023-07-15T08:50:32 Z andecaandeci Naboj (COCI22_naboj) C++17
110 / 110
 486 ms 17876 KB 
#include <bits/stdc++.h>
#include <bits/stdc++.h>
using namespace std;
#define ll long long int
#define cy cout<<"YES"<<endl
#define cn cout<<"NO"<<endl
#define repp(i,n,k) for(int i=1;i<=n;i+=k)
#define repo(i,n,k) for(int i=0;i<n;i+=k)
#define pb push_back
using namespace std;

ll arr[200005];
vector<ll> adj[200005];
vector<ll> ans;

int main(){
  ll m,n;cin>>m>>n;
  queue<ll> q;
  for(int i=1;i<=n;i++){
    ll a,b;cin>>a>>b;
    adj[a].push_back(b);
    arr[b]++;
  } 
  repp(i,m,1){
    if(arr[i]==0) q.push(i);
  }
  while(!q.empty()){
    ll cur=q.front();
    ans.pb(cur);
    q.pop();
    for(ll nx:adj[cur]){
      arr[nx]--;
      if(arr[nx]==0) q.push(nx);
    }
  }
  if(ans.size()!=m) cout<<"-1";
  else {
    cout<<ans.size()<<endl;
    for(ll nx:ans){
      cout<<nx<<" 0"<<endl;
    }
  }
}

Compilation message

naboj.cpp: In function 'int main()':
naboj.cpp:36:16: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   36 |   if(ans.size()!=m) cout<<"-1";
      |      ~~~~~~~~~~^~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 311 ms 14876 KB Output is correct
2 Correct 321 ms 14872 KB Output is correct
3 Correct 165 ms 10180 KB Output is correct
4 Correct 324 ms 15004 KB Output is correct
5 Correct 319 ms 14952 KB Output is correct
6 Correct 328 ms 14896 KB Output is correct
7 Correct 323 ms 14928 KB Output is correct
8 Correct 256 ms 12808 KB Output is correct
9 Correct 353 ms 14896 KB Output is correct
10 Correct 323 ms 14848 KB Output is correct

Subtask #3
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 311 ms 14876 KB Output is correct
16 Correct 321 ms 14872 KB Output is correct
17 Correct 165 ms 10180 KB Output is correct
18 Correct 324 ms 15004 KB Output is correct
19 Correct 319 ms 14952 KB Output is correct
20 Correct 328 ms 14896 KB Output is correct
21 Correct 323 ms 14928 KB Output is correct
22 Correct 256 ms 12808 KB Output is correct
23 Correct 353 ms 14896 KB Output is correct
24 Correct 323 ms 14848 KB Output is correct
25 Correct 189 ms 12796 KB Output is correct
26 Correct 152 ms 13728 KB Output is correct
27 Correct 187 ms 13956 KB Output is correct
28 Correct 285 ms 15096 KB Output is correct
29 Correct 139 ms 14172 KB Output is correct
30 Correct 236 ms 14912 KB Output is correct
31 Correct 37 ms 6372 KB Output is correct
32 Correct 336 ms 14080 KB Output is correct
33 Correct 461 ms 17272 KB Output is correct
34 Correct 376 ms 14404 KB Output is correct
35 Correct 451 ms 17224 KB Output is correct
36 Correct 340 ms 14140 KB Output is correct
37 Correct 434 ms 16500 KB Output is correct
38 Correct 395 ms 15668 KB Output is correct
39 Correct 454 ms 17088 KB Output is correct
40 Correct 435 ms 16208 KB Output is correct
41 Correct 404 ms 16144 KB Output is correct
42 Correct 485 ms 17600 KB Output is correct
43 Correct 366 ms 14688 KB Output is correct
44 Correct 486 ms 17876 KB Output is correct
45 Correct 341 ms 14272 KB Output is correct
46 Correct 445 ms 16184 KB Output is correct