Submission #895073

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
895073	2023-12-29 11:36:13	d4xn	Potatoes and fertilizers (LMIO19_bulves)	C++17	24 / 100	177 ms	22612 KiB

bulves

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#include <bits/stdc++.h>
using namespace std;
 
#define int long long
 
const int N = 1e6+6;
 
int n, a[N], b[N];
set<int> st;
signed main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);
 
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> b[i];
    if (a[i] > b[i]) st.insert(i);
  }
  st.insert(-1);
  st.insert(n);
  int ans = 0;
  for (int i = 0; i < n; i++) {
    if (a[i] >= b[i]) continue;
    while (a[i] < b[i]) {
      auto l = prev(st.lower_bound(i));
      auto r = st.lower_bound(i);
      int x = *l;
 
 
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• Subtask 1: 24 / 24
• Subtask 2: 0 / 10
• Subtask 3: 0 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 36