oj.uz

Submission #402150

# Submission time Handle Problem Language Result Execution time Memory
402150 2021-05-11T11:31:23 Z A_D Duathlon (APIO18_duathlon) C++14
0 / 100
 1000 ms 1048580 KB 

#include <bits/stdc++.h>

#define int long long

using namespace std;
const int N=1e5+100;
vector<int> g[N];
int dep[N];
int a[N];
int n,ans;
void dfs2(int u,int p)
{
    for(auto x:g[u]){
        if(x==p)continue;
        dep[x]=dep[u]+1;
        dfs2(x,u);
        a[u]+=a[x];
    }
}
void dfs(int u,int p,int ann)
{
    ans+=ann-(n);
    //cout<<u<<" "<<ann<<endl;
    ans+=1;
    for(auto x:g[u]){
        if(x==p)continue;
        dfs(x,u,ann+(n-a[x])-a[x]);
    }
}
void solve()
{
    int m,ann=0;
    cin>>n>>m;
    for(int i=1;i<=n;i++)a[i]=1;
    while(m--){
        int a,b;
        cin>>a>>b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    dfs2(1,1);
    for(int i=1;i<=n;i++){
        ann+=dep[i];
    }
    dfs(1,1,ann);
    cout<<ans<<endl;
}

main()
{
    int t=1;
//    cin>>t;
    while(t--)solve();
}

Compilation message

count_triplets.cpp:51:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   51 | main()
      | ^~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 492 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 492 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1118 ms 560432 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 3 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 3 ms 2764 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2664 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 3 ms 2636 KB Output is correct
9 Correct 3 ms 2636 KB Output is correct
10 Incorrect 3 ms 2636 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 9056 KB Output is correct
2 Correct 103 ms 9116 KB Output is correct
3 Correct 127 ms 9284 KB Output is correct
4 Correct 115 ms 9216 KB Output is correct
5 Correct 107 ms 9188 KB Output is correct
6 Correct 117 ms 12832 KB Output is correct
7 Correct 133 ms 11844 KB Output is correct
8 Correct 124 ms 11100 KB Output is correct
9 Correct 115 ms 10432 KB Output is correct
10 Incorrect 98 ms 9164 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2660 KB Output is correct
2 Correct 3 ms 2636 KB Output is correct
3 Runtime error 629 ms 1048580 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 105 ms 9124 KB Output is correct
2 Correct 114 ms 9096 KB Output is correct
3 Runtime error 802 ms 1048580 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 492 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 492 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -