Submission #473505

#	Time	Username	Problem	Language	Result	Execution time	Memory
473505		piotrulo	Potatoes and fertilizers (LMIO19_bulves)	C++17	100 / 100	463 ms	19376 KiB

bulves

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    vector<long long>s(n);
    for(auto &x: s){
        int a,b;
        cin>>a>>b;
        x=a-b;
    }
    partial_sum(s.begin(),s.end(),s.begin());
    long long t=0;
    priority_queue<long long,vector<long long>,greater<long long>>q;
    for(int i=0;i<n+2;i++){
        q.push(1ll*0);
    }
    for(auto w : s){
        q.pop();
        t+=max(-w-q.top(), 0LL);
        q.push(-w);
        q.push(-w);
    }
    long long ctr=0;
    while(q.top()!=-s.back()){
        auto x=q.top();
        q.pop();
        t+=ctr*(q.top()-x);
        ctr++;
    }
    cout<<t;
}

• Subtask 1: 24 / 24
• Subtask 2: 10 / 10
• Subtask 3: 20 / 20
• Subtask 4: 10 / 10
• Subtask 5: 36 / 36