Submission #1164737

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164737		AbdullahIshfaq	Potatoes and fertilizers (LMIO19_bulves)	C++20	100 / 100	97 ms	10416 KiB

bulves

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define MOD 998244353
void solve(){
	ll n, a, b, p = 0, ans = 0;
	cin >> n;
	vector<ll> tmp;
	for(int i = 0; i < n; i ++){
		cin >> a >> b;
		p += a - b;
		tmp.push_back(p);
	}
	priority_queue<ll> pq;
	for(auto c : tmp){
		if(c < 0){
			ans += -c;
			c = 0;
		}
		else if(c > p){
			ans += c - p;
			c = p;
		}
		pq.push(c);
		if(pq.top() > c){
			ans += (pq.top() - c);
			pq.push(c);
			pq.pop();
		}
	}
	cout << ans << '\n';
}
int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int tests = 1;
	// cin >> tests;
	for(int i = 1; i <= tests; i ++)
		solve();
}

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