Submission #798692

#	Time	Username	Problem	Language	Result	Execution time	Memory
798692		abcvuitunggio	Potatoes and fertilizers (LMIO19_bulves)	C++17	100 / 100	114 ms	16296 KiB

bulves

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,a[500001],b[500001],d[500001],res;
priority_queue <int> q;
int32_t main(){
    ios_base::sync_with_stdio(NULL);cin.tie(nullptr);
    cin >> n;
    for (int i=1;i<=n;i++){
        cin >> a[i] >> b[i];
        d[i]=d[i-1]+a[i]-b[i];
    }
    for (int i=1;i<n;i++){
        res+=max(-d[i],0LL)+max(d[i]-d[n],0LL);
        d[i]=min(max(d[i],0LL),d[n]);
        q.push(d[i]);
        q.push(d[i]);
        res+=q.top()-d[i];
        q.pop();
    }
    cout << res;
}

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