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Submission #329299

# Submission time Handle Problem Language Result Execution time Memory
329299 2020-11-20T11:15:37 Z nickmet2004 Duathlon (APIO18_duathlon) C++11
0 / 100
 640 ms 1048576 KB 
#include<bits/stdc++.h>

using namespace std;
const int N = 1e5 + 5;
int n , m;
vector<int> adj[N];
int sub[N] , ans[N];
void go(int u = 1 , int p = 0){
    for(int v : adj[u]){
        if(v==p)continue;
        go(v , u);
        sub[u] += sub[v];
    }
    sub[u]++;
}
void dfs(int u = 1, int p = 0){
    for(int v : adj[u]){
        if(v == p)continue;
        dfs(v , u);
        if(adj[v].size() > 1) ans[u] += sub[v] - 1 + ans[v];
    }
}
int main (){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> m;
    for(int i = 1; i < n; ++i){
        int u , v; cin >>u >> v;
        adj[u].emplace_back(v); adj[v].emplace_back(u);
    }
    go();
    dfs();
    int A = 0;
    for(int i = 1; i <= n; ++i) A += ans[i];
    cout << A * 2;

}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 640 ms 1048576 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 640 ms 1048576 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 98 ms 13272 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 2796 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 75 ms 7916 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2796 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 82 ms 7916 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 640 ms 1048576 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 640 ms 1048576 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -