Submission #595574

#	Time	Username	Problem	Language	Result	Execution time	Memory
595574		AdamGS	Potatoes and fertilizers (LMIO19_bulves)	C++17	24 / 100	83 ms	14840 KiB

bulves

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=5e5+7;
ll A[LIM], B[LIM];
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n;
  cin >> n;
  rep(i, n) cin >> A[i] >> B[i];
  ll ans=0, l=0;
  rep(i, n) {
    while(B[i]) {
      while(!A[l]) ++l;
      ll x=min(A[l], B[i]);
      ans+=x*abs(l-i);
      A[l]-=x;
      B[i]-=x;
    }
  }
  cout << ans << '\n';
}

• Subtask 1: 24 / 24
• Subtask 2: 0 / 10
• Subtask 3: 0 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 36