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Submission #370668

# Submission time Handle Problem Language Result Execution time Memory
370668 2021-02-24T13:03:19 Z Leonardo_Paes Duathlon (APIO18_duathlon) C++17
23 / 100
 1000 ms 1048580 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ar array
#define sz(a) ((int)(a).size())
#define all(a) (a).begin(),(a).end()
typedef pair<int,int> pii;
#define f first
#define s second
const int maxn = 1e5+10;
vector<int> grafo[maxn];
int n, m, dp[maxn], sz[maxn], qtd[maxn], qtd2[maxn];
int solve(int u, int p = 0){ // lca of path is u, 1 as a root
    int ans = 0; // sum of dps
    sz[u] = 1;
    for(int v : grafo[u]){
        if(v == p) continue;
        ans += solve(v, u);
        sz[u] += sz[v];
        qtd2[u] += (qtd2[v] + sz[v]) * qtd[u];
    }
    int qtdd = sz[u] - 1;
    for(int v : grafo[u]){
        if(v == p) continue;
        qtdd -= sz[v];
        dp[u] += sz[v] * qtdd * qtd[u];
        dp[u] += (sz[u]  - sz[v]) * qtd2[v];
    }
    return ans + dp[u];
}
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin >> n >> m;
    for(int i=1; i<=m; i++){
        int u, v;
        cin >> u >> v;
        grafo[u].push_back(v);
        grafo[v].push_back(u);
    }
    int ans = 0;
    for(int i=1; i<=n; i++) qtd[i] = 1;
    for(int i=1; i<=n; i++){
        if(!sz[i]) ans += solve(i);
    }
    cout << 2*ans << "\n";
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 626 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 626 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 1116 ms 413804 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2796 KB Output is correct
2 Correct 2 ms 2796 KB Output is correct
3 Correct 2 ms 2796 KB Output is correct
4 Correct 3 ms 2796 KB Output is correct
5 Correct 3 ms 2796 KB Output is correct
6 Correct 2 ms 2796 KB Output is correct
7 Correct 2 ms 2796 KB Output is correct
8 Correct 2 ms 2796 KB Output is correct
9 Correct 2 ms 2796 KB Output is correct
10 Correct 2 ms 2796 KB Output is correct
11 Correct 3 ms 2796 KB Output is correct
12 Correct 3 ms 2796 KB Output is correct
13 Correct 2 ms 2796 KB Output is correct
14 Correct 3 ms 2796 KB Output is correct
15 Correct 2 ms 2796 KB Output is correct
16 Correct 2 ms 2796 KB Output is correct
17 Correct 3 ms 2796 KB Output is correct
18 Correct 2 ms 2796 KB Output is correct
19 Correct 2 ms 2796 KB Output is correct
20 Correct 2 ms 2796 KB Output is correct

Subtask #5
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 9708 KB Output is correct
2 Correct 63 ms 9580 KB Output is correct
3 Correct 63 ms 9580 KB Output is correct
4 Correct 72 ms 9580 KB Output is correct
5 Correct 71 ms 9708 KB Output is correct
6 Correct 76 ms 13292 KB Output is correct
7 Correct 88 ms 12268 KB Output is correct
8 Correct 80 ms 11696 KB Output is correct
9 Correct 74 ms 10860 KB Output is correct
10 Correct 63 ms 9580 KB Output is correct
11 Correct 67 ms 9708 KB Output is correct
12 Correct 65 ms 9708 KB Output is correct
13 Correct 71 ms 9708 KB Output is correct
14 Correct 66 ms 9452 KB Output is correct
15 Correct 76 ms 9196 KB Output is correct
16 Correct 34 ms 8300 KB Output is correct
17 Correct 48 ms 8288 KB Output is correct
18 Correct 42 ms 8412 KB Output is correct
19 Correct 43 ms 8540 KB Output is correct
20 Correct 42 ms 8412 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2796 KB Output is correct
2 Correct 2 ms 2796 KB Output is correct
3 Runtime error 742 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 63 ms 9600 KB Output is correct
2 Correct 76 ms 9452 KB Output is correct
3 Runtime error 911 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 626 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 626 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -