oj.uz

답안 #46975

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
46975 2018-04-25T16:07:45 Z ngkan146 Fireworks (APIO16_fireworks) C++11
26 / 100
 19 ms 17356 KB 
#include <bits/stdc++.h>
#define ll long long
using namespace std;
int n,m,c[300005];
priority_queue<int> 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();

     //cout << u << ' ' << slope[u].size() << endl;
}
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++){
        //cout << mjk[i] << ' ';
        val[1] -= 1ll * (m+1-i) * (mjk[i] - mjk[i-1]);
    }//cout << endl;
    cout << val[1];
}

Compilation message

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:43:18: 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

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16760 KB Output is correct
2 Correct 15 ms 16876 KB Output is correct
3 Correct 16 ms 16984 KB Output is correct
4 Correct 18 ms 17040 KB Output is correct
5 Correct 19 ms 17040 KB Output is correct
6 Correct 15 ms 17096 KB Output is correct
7 Correct 19 ms 17096 KB Output is correct
8 Correct 14 ms 17164 KB Output is correct
9 Correct 15 ms 17164 KB Output is correct
10 Correct 15 ms 17164 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 17164 KB Output is correct
2 Correct 15 ms 17164 KB Output is correct
3 Correct 15 ms 17240 KB Output is correct
4 Correct 15 ms 17240 KB Output is correct
5 Correct 18 ms 17240 KB Output is correct
6 Correct 16 ms 17240 KB Output is correct
7 Correct 19 ms 17240 KB Output is correct
8 Correct 15 ms 17240 KB Output is correct
9 Correct 16 ms 17240 KB Output is correct
10 Correct 15 ms 17264 KB Output is correct
11 Correct 15 ms 17316 KB Output is correct
12 Correct 17 ms 17316 KB Output is correct
13 Correct 15 ms 17316 KB Output is correct
14 Correct 15 ms 17316 KB Output is correct
15 Correct 17 ms 17316 KB Output is correct
16 Correct 17 ms 17316 KB Output is correct
17 Correct 18 ms 17316 KB Output is correct
18 Correct 15 ms 17316 KB Output is correct
19 Correct 18 ms 17316 KB Output is correct

Subtask #3
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16760 KB Output is correct
2 Correct 15 ms 16876 KB Output is correct
3 Correct 16 ms 16984 KB Output is correct
4 Correct 18 ms 17040 KB Output is correct
5 Correct 19 ms 17040 KB Output is correct
6 Correct 15 ms 17096 KB Output is correct
7 Correct 19 ms 17096 KB Output is correct
8 Correct 14 ms 17164 KB Output is correct
9 Correct 15 ms 17164 KB Output is correct
10 Correct 15 ms 17164 KB Output is correct
11 Correct 15 ms 17164 KB Output is correct
12 Correct 15 ms 17164 KB Output is correct
13 Correct 15 ms 17240 KB Output is correct
14 Correct 15 ms 17240 KB Output is correct
15 Correct 18 ms 17240 KB Output is correct
16 Correct 16 ms 17240 KB Output is correct
17 Correct 19 ms 17240 KB Output is correct
18 Correct 15 ms 17240 KB Output is correct
19 Correct 16 ms 17240 KB Output is correct
20 Correct 15 ms 17264 KB Output is correct
21 Correct 15 ms 17316 KB Output is correct
22 Correct 17 ms 17316 KB Output is correct
23 Correct 15 ms 17316 KB Output is correct
24 Correct 15 ms 17316 KB Output is correct
25 Correct 17 ms 17316 KB Output is correct
26 Correct 17 ms 17316 KB Output is correct
27 Correct 18 ms 17316 KB Output is correct
28 Correct 15 ms 17316 KB Output is correct
29 Correct 18 ms 17316 KB Output is correct
30 Incorrect 15 ms 17356 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16760 KB Output is correct
2 Correct 15 ms 16876 KB Output is correct
3 Correct 16 ms 16984 KB Output is correct
4 Correct 18 ms 17040 KB Output is correct
5 Correct 19 ms 17040 KB Output is correct
6 Correct 15 ms 17096 KB Output is correct
7 Correct 19 ms 17096 KB Output is correct
8 Correct 14 ms 17164 KB Output is correct
9 Correct 15 ms 17164 KB Output is correct
10 Correct 15 ms 17164 KB Output is correct
11 Correct 15 ms 17164 KB Output is correct
12 Correct 15 ms 17164 KB Output is correct
13 Correct 15 ms 17240 KB Output is correct
14 Correct 15 ms 17240 KB Output is correct
15 Correct 18 ms 17240 KB Output is correct
16 Correct 16 ms 17240 KB Output is correct
17 Correct 19 ms 17240 KB Output is correct
18 Correct 15 ms 17240 KB Output is correct
19 Correct 16 ms 17240 KB Output is correct
20 Correct 15 ms 17264 KB Output is correct
21 Correct 15 ms 17316 KB Output is correct
22 Correct 17 ms 17316 KB Output is correct
23 Correct 15 ms 17316 KB Output is correct
24 Correct 15 ms 17316 KB Output is correct
25 Correct 17 ms 17316 KB Output is correct
26 Correct 17 ms 17316 KB Output is correct
27 Correct 18 ms 17316 KB Output is correct
28 Correct 15 ms 17316 KB Output is correct
29 Correct 18 ms 17316 KB Output is correct
30 Incorrect 15 ms 17356 KB Output isn't correct
31 Halted 0 ms 0 KB -