oj.uz

Submission #46978

# Submission time Handle Problem Language Result Execution time Memory
46978 2018-04-25T16:12:04 Z ngkan146 Fireworks (APIO16_fireworks) C++11
26 / 100
 19 ms 17240 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;
int n,m;
ll c[300005];
priority_queue<ll> slope[300005];
vector <int> G[300005];
ll val[300005];
// numkid = startslope ?
void dfs(int u){
    if (u > n){
        return;
    }

    for(auto v: G[u]){
        dfs(v);
        val[u] += val[v] + c[v];
        if (v > n){
            slope[v].push(c[v]);
            slope[v].push(c[v]);
        }
        else{
            int x = slope[v].top();
            slope[v].pop();
            int y = slope[v].top();
            slope[v].pop();

            slope[v].push(x + c[v]);
            slope[v].push(y + c[v]);
        }
    }

    for(auto v: G[u]){
        if (slope[v].size() > slope[u].size())
            slope[u].swap(slope[v]);
    }

    for(auto v: G[u]){
        while(slope[v].size())
            slope[u].push(slope[v].top()),
            slope[v].pop();
    }

    for(int _=0;_<G[u].size()-1;_++)
        slope[u].pop();

}
int main(){
    iostream::sync_with_stdio(0);
    cin >> n >> m;
    for(int i=2;i<=n+m;i++){
        int p;
        cin >> p >> c[i];
        G[p].push_back(i);
    }
    dfs(1);
    vector <int> mjk;
    while(!slope[1].empty()){
        mjk.push_back(slope[1].top());
        slope[1].pop();
    }
    mjk.push_back(0);
    reverse(mjk.begin(), mjk.end());
    for(int i=1;i<mjk.size();i++){
        val[1] -= 1ll * (m+1-i) * (mjk[i] - mjk[i-1]);
    }
    cout << val[1];
}

Compilation message

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:44:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int _=0;_<G[u].size()-1;_++)
                 ~^~~~~~~~~~~~~~
fireworks.cpp: In function 'int main()':
fireworks.cpp:64:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<mjk.size();i++){
                 ~^~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16760 KB Output is correct
2 Correct 16 ms 16868 KB Output is correct
3 Correct 16 ms 16920 KB Output is correct
4 Correct 16 ms 16920 KB Output is correct
5 Correct 15 ms 16940 KB Output is correct
6 Correct 16 ms 16984 KB Output is correct
7 Correct 15 ms 16984 KB Output is correct
8 Correct 15 ms 16984 KB Output is correct
9 Correct 14 ms 17024 KB Output is correct
10 Correct 16 ms 17072 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 17072 KB Output is correct
2 Correct 15 ms 17072 KB Output is correct
3 Correct 15 ms 17072 KB Output is correct
4 Correct 16 ms 17072 KB Output is correct
5 Correct 16 ms 17072 KB Output is correct
6 Correct 15 ms 17072 KB Output is correct
7 Correct 16 ms 17240 KB Output is correct
8 Correct 15 ms 17240 KB Output is correct
9 Correct 15 ms 17240 KB Output is correct
10 Correct 15 ms 17240 KB Output is correct
11 Correct 15 ms 17240 KB Output is correct
12 Correct 15 ms 17240 KB Output is correct
13 Correct 16 ms 17240 KB Output is correct
14 Correct 15 ms 17240 KB Output is correct
15 Correct 15 ms 17240 KB Output is correct
16 Correct 14 ms 17240 KB Output is correct
17 Correct 16 ms 17240 KB Output is correct
18 Correct 16 ms 17240 KB Output is correct
19 Correct 16 ms 17240 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16760 KB Output is correct
2 Correct 16 ms 16868 KB Output is correct
3 Correct 16 ms 16920 KB Output is correct
4 Correct 16 ms 16920 KB Output is correct
5 Correct 15 ms 16940 KB Output is correct
6 Correct 16 ms 16984 KB Output is correct
7 Correct 15 ms 16984 KB Output is correct
8 Correct 15 ms 16984 KB Output is correct
9 Correct 14 ms 17024 KB Output is correct
10 Correct 16 ms 17072 KB Output is correct
11 Correct 19 ms 17072 KB Output is correct
12 Correct 15 ms 17072 KB Output is correct
13 Correct 15 ms 17072 KB Output is correct
14 Correct 16 ms 17072 KB Output is correct
15 Correct 16 ms 17072 KB Output is correct
16 Correct 15 ms 17072 KB Output is correct
17 Correct 16 ms 17240 KB Output is correct
18 Correct 15 ms 17240 KB Output is correct
19 Correct 15 ms 17240 KB Output is correct
20 Correct 15 ms 17240 KB Output is correct
21 Correct 15 ms 17240 KB Output is correct
22 Correct 15 ms 17240 KB Output is correct
23 Correct 16 ms 17240 KB Output is correct
24 Correct 15 ms 17240 KB Output is correct
25 Correct 15 ms 17240 KB Output is correct
26 Correct 14 ms 17240 KB Output is correct
27 Correct 16 ms 17240 KB Output is correct
28 Correct 16 ms 17240 KB Output is correct
29 Correct 16 ms 17240 KB Output is correct
30 Incorrect 16 ms 17240 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16760 KB Output is correct
2 Correct 16 ms 16868 KB Output is correct
3 Correct 16 ms 16920 KB Output is correct
4 Correct 16 ms 16920 KB Output is correct
5 Correct 15 ms 16940 KB Output is correct
6 Correct 16 ms 16984 KB Output is correct
7 Correct 15 ms 16984 KB Output is correct
8 Correct 15 ms 16984 KB Output is correct
9 Correct 14 ms 17024 KB Output is correct
10 Correct 16 ms 17072 KB Output is correct
11 Correct 19 ms 17072 KB Output is correct
12 Correct 15 ms 17072 KB Output is correct
13 Correct 15 ms 17072 KB Output is correct
14 Correct 16 ms 17072 KB Output is correct
15 Correct 16 ms 17072 KB Output is correct
16 Correct 15 ms 17072 KB Output is correct
17 Correct 16 ms 17240 KB Output is correct
18 Correct 15 ms 17240 KB Output is correct
19 Correct 15 ms 17240 KB Output is correct
20 Correct 15 ms 17240 KB Output is correct
21 Correct 15 ms 17240 KB Output is correct
22 Correct 15 ms 17240 KB Output is correct
23 Correct 16 ms 17240 KB Output is correct
24 Correct 15 ms 17240 KB Output is correct
25 Correct 15 ms 17240 KB Output is correct
26 Correct 14 ms 17240 KB Output is correct
27 Correct 16 ms 17240 KB Output is correct
28 Correct 16 ms 17240 KB Output is correct
29 Correct 16 ms 17240 KB Output is correct
30 Incorrect 16 ms 17240 KB Output isn't correct
31 Halted 0 ms 0 KB -