Submission #508662

#	Time	Username	Problem	Language	Result	Execution time	Memory
508662		CyberSleeper	Potatoes and fertilizers (LMIO19_bulves)	C++14	100 / 100	198 ms	11060 KiB

bulves

#include <bits/stdc++.h>
#define fastio      ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define debug(x)    cout << "Line " << __LINE__ << ", " << #x << " is " << x << endl
#define fi          first
#define se          second
#define mp          make_pair
#define pb          push_back
#define ll          long long
#define ull         unsigned long long
#define pii         pair<int, int>
#define pll         pair<ll, ll>
#define ld          long double
#define nl          '\n'
#define tb          '\t'
#define sp          ' '
using namespace std;

const int MX=3005, MOD=998244353, BLOCK=327, INF=1e9+7;
const ll INFF=1e18+7;
const ld ERR=1e-7, pi=3.14159265358979323846;

ll N, A, ans;
priority_queue<ll> best;

int main(){
    fastio;
    cin >> N;
    for(ll i=1; i<=N; i++){
        ll a, b;
        cin >> a >> b;
        A+=a-b;
        ans+=abs(A);
        if(A<0){
            best.push(0);
            best.push(0);
        }else{
            best.push(A);
            best.push(A);
        }
        best.pop();
    }
    while(best.size()){
        ans-=min(A, best.top());
        best.pop();
    }
    cout << ans << nl;
}

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