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Submission #943851

# Submission time Handle Problem Language Result Execution time Memory
943851 2024-03-12T02:34:22 Z kim Fireworks (APIO16_fireworks) C++17
7 / 100
 14 ms 32344 KB 
#include<bits/stdc++.h>
using namespace std;
#define endl '\n'
using ll=long long;

struct A{
    multiset<ll> L,R;
    ll mn;
    A():mn(0){}
    void insert(ll x1,ll x2,ll c){
        mn+=c;
        if(L.empty()) L.insert(x1), R.insert(x2);
        else if(x2<*L.rbegin()){
            mn+=*L.rbegin()-x2;
            L.emplace(x1), L.emplace(x2);
            R.emplace(*L.rbegin()), L.erase(prev(L.end()));
        }
        else if(x1>*R.begin()){
            mn+=x1-*R.begin();
            R.emplace(x1), R.emplace(x2);
            L.emplace(*R.begin()), R.erase(R.begin());
        }
        else L.emplace(x1), R.emplace(x2);
    }
}t[300005];

int p[300005];
ll c[300005];

int main(){
    ios::sync_with_stdio(false); cin.tie(0);

    int n,m; cin>>n>>m;
    for(int i=2;i<=n+m;++i) cin>>p[i]>>c[i];
    for(int i=n+m;i>n;--i) t[p[i]].insert(c[i],c[i],0);
    for(int i=n;i>1;--i){
        ll x1=*t[i].L.rbegin(),  x2=*t[i].R.begin();
        t[p[i]].insert(x1+c[i],x2+c[i],t[i].mn);
    }
    cout<<t[1].mn;

}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 32092 KB Output is correct
2 Correct 7 ms 32092 KB Output is correct
3 Correct 7 ms 32344 KB Output is correct
4 Correct 7 ms 32280 KB Output is correct
5 Correct 6 ms 32088 KB Output is correct
6 Correct 6 ms 32284 KB Output is correct
7 Correct 6 ms 32092 KB Output is correct
8 Correct 14 ms 30812 KB Output is correct
9 Correct 10 ms 32180 KB Output is correct
10 Correct 7 ms 32088 KB Output is correct

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 32092 KB Output is correct
2 Correct 8 ms 32284 KB Output is correct
3 Incorrect 7 ms 32188 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 32092 KB Output is correct
2 Correct 7 ms 32092 KB Output is correct
3 Correct 7 ms 32344 KB Output is correct
4 Correct 7 ms 32280 KB Output is correct
5 Correct 6 ms 32088 KB Output is correct
6 Correct 6 ms 32284 KB Output is correct
7 Correct 6 ms 32092 KB Output is correct
8 Correct 14 ms 30812 KB Output is correct
9 Correct 10 ms 32180 KB Output is correct
10 Correct 7 ms 32088 KB Output is correct
11 Correct 9 ms 32092 KB Output is correct
12 Correct 8 ms 32284 KB Output is correct
13 Incorrect 7 ms 32188 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 32092 KB Output is correct
2 Correct 7 ms 32092 KB Output is correct
3 Correct 7 ms 32344 KB Output is correct
4 Correct 7 ms 32280 KB Output is correct
5 Correct 6 ms 32088 KB Output is correct
6 Correct 6 ms 32284 KB Output is correct
7 Correct 6 ms 32092 KB Output is correct
8 Correct 14 ms 30812 KB Output is correct
9 Correct 10 ms 32180 KB Output is correct
10 Correct 7 ms 32088 KB Output is correct
11 Correct 9 ms 32092 KB Output is correct
12 Correct 8 ms 32284 KB Output is correct
13 Incorrect 7 ms 32188 KB Output isn't correct
14 Halted 0 ms 0 KB -