oj.uz

Submission #46979

# Submission time Handle Problem Language Result Execution time Memory
46979 2018-04-25T16:13:20 Z ngkan146 Fireworks (APIO16_fireworks) C++11
26 / 100
 21 ms 18516 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;
int n,m;
ll c[300005];
priority_queue<ll> slope[300005];
vector <ll> 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{
            ll x = slope[v].top();
            slope[v].pop();
            ll 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 14 ms 16760 KB Output is correct
2 Correct 15 ms 16868 KB Output is correct
3 Correct 15 ms 16920 KB Output is correct
4 Correct 15 ms 17124 KB Output is correct
5 Correct 15 ms 17124 KB Output is correct
6 Correct 14 ms 17124 KB Output is correct
7 Correct 14 ms 17124 KB Output is correct
8 Correct 16 ms 17124 KB Output is correct
9 Correct 15 ms 17124 KB Output is correct
10 Correct 15 ms 17124 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 17124 KB Output is correct
2 Correct 15 ms 17124 KB Output is correct
3 Correct 15 ms 17124 KB Output is correct
4 Correct 14 ms 17124 KB Output is correct
5 Correct 19 ms 17124 KB Output is correct
6 Correct 15 ms 17124 KB Output is correct
7 Correct 19 ms 17124 KB Output is correct
8 Correct 15 ms 17124 KB Output is correct
9 Correct 15 ms 17124 KB Output is correct
10 Correct 14 ms 17216 KB Output is correct
11 Correct 16 ms 17216 KB Output is correct
12 Correct 15 ms 17216 KB Output is correct
13 Correct 16 ms 17216 KB Output is correct
14 Correct 15 ms 17216 KB Output is correct
15 Correct 18 ms 17216 KB Output is correct
16 Correct 15 ms 17216 KB Output is correct
17 Correct 15 ms 17216 KB Output is correct
18 Correct 15 ms 17216 KB Output is correct
19 Correct 15 ms 17216 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 16760 KB Output is correct
2 Correct 15 ms 16868 KB Output is correct
3 Correct 15 ms 16920 KB Output is correct
4 Correct 15 ms 17124 KB Output is correct
5 Correct 15 ms 17124 KB Output is correct
6 Correct 14 ms 17124 KB Output is correct
7 Correct 14 ms 17124 KB Output is correct
8 Correct 16 ms 17124 KB Output is correct
9 Correct 15 ms 17124 KB Output is correct
10 Correct 15 ms 17124 KB Output is correct
11 Correct 15 ms 17124 KB Output is correct
12 Correct 15 ms 17124 KB Output is correct
13 Correct 15 ms 17124 KB Output is correct
14 Correct 14 ms 17124 KB Output is correct
15 Correct 19 ms 17124 KB Output is correct
16 Correct 15 ms 17124 KB Output is correct
17 Correct 19 ms 17124 KB Output is correct
18 Correct 15 ms 17124 KB Output is correct
19 Correct 15 ms 17124 KB Output is correct
20 Correct 14 ms 17216 KB Output is correct
21 Correct 16 ms 17216 KB Output is correct
22 Correct 15 ms 17216 KB Output is correct
23 Correct 16 ms 17216 KB Output is correct
24 Correct 15 ms 17216 KB Output is correct
25 Correct 18 ms 17216 KB Output is correct
26 Correct 15 ms 17216 KB Output is correct
27 Correct 15 ms 17216 KB Output is correct
28 Correct 15 ms 17216 KB Output is correct
29 Correct 15 ms 17216 KB Output is correct
30 Correct 15 ms 17216 KB Output is correct
31 Correct 16 ms 17216 KB Output is correct
32 Correct 16 ms 17216 KB Output is correct
33 Correct 16 ms 17364 KB Output is correct
34 Correct 17 ms 17400 KB Output is correct
35 Correct 18 ms 17636 KB Output is correct
36 Correct 18 ms 17636 KB Output is correct
37 Correct 19 ms 17840 KB Output is correct
38 Correct 19 ms 17840 KB Output is correct
39 Correct 21 ms 17904 KB Output is correct
40 Incorrect 18 ms 18516 KB Output isn't correct
41 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 16760 KB Output is correct
2 Correct 15 ms 16868 KB Output is correct
3 Correct 15 ms 16920 KB Output is correct
4 Correct 15 ms 17124 KB Output is correct
5 Correct 15 ms 17124 KB Output is correct
6 Correct 14 ms 17124 KB Output is correct
7 Correct 14 ms 17124 KB Output is correct
8 Correct 16 ms 17124 KB Output is correct
9 Correct 15 ms 17124 KB Output is correct
10 Correct 15 ms 17124 KB Output is correct
11 Correct 15 ms 17124 KB Output is correct
12 Correct 15 ms 17124 KB Output is correct
13 Correct 15 ms 17124 KB Output is correct
14 Correct 14 ms 17124 KB Output is correct
15 Correct 19 ms 17124 KB Output is correct
16 Correct 15 ms 17124 KB Output is correct
17 Correct 19 ms 17124 KB Output is correct
18 Correct 15 ms 17124 KB Output is correct
19 Correct 15 ms 17124 KB Output is correct
20 Correct 14 ms 17216 KB Output is correct
21 Correct 16 ms 17216 KB Output is correct
22 Correct 15 ms 17216 KB Output is correct
23 Correct 16 ms 17216 KB Output is correct
24 Correct 15 ms 17216 KB Output is correct
25 Correct 18 ms 17216 KB Output is correct
26 Correct 15 ms 17216 KB Output is correct
27 Correct 15 ms 17216 KB Output is correct
28 Correct 15 ms 17216 KB Output is correct
29 Correct 15 ms 17216 KB Output is correct
30 Correct 15 ms 17216 KB Output is correct
31 Correct 16 ms 17216 KB Output is correct
32 Correct 16 ms 17216 KB Output is correct
33 Correct 16 ms 17364 KB Output is correct
34 Correct 17 ms 17400 KB Output is correct
35 Correct 18 ms 17636 KB Output is correct
36 Correct 18 ms 17636 KB Output is correct
37 Correct 19 ms 17840 KB Output is correct
38 Correct 19 ms 17840 KB Output is correct
39 Correct 21 ms 17904 KB Output is correct
40 Incorrect 18 ms 18516 KB Output isn't correct
41 Halted 0 ms 0 KB -