Submission #1135309

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1135309	2025-01-12 10:53:38	nuutsnoynton	도넛 (JOI14_ho_t3)	C++20	100 / 100	246 ms	1972 KiB

2014_ho_t3

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#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
  ll n, m, r, x, y, i, j, ans,s, lo, hi, mid, sum, t;
  cin >> n;
  
  ll a[n + 2], pre[n + 2];
  pre[0] = 0;
  ans = 0;
  for (i = 1; i <= n; i ++) cin >> a[i], pre[i] = pre[i - 1] + a[i];
  for (i = 1; i <= n; i ++) {
    lo = 1;
    hi = 1e18;
    while (lo < hi) {
      mid = (lo + hi)/2;
       
      sum =pre[n];
      s = lower_bound(pre + 1, pre + n + 1, pre[i - 1] + mid) - pre;
      if ( s > n) {
        hi = mid;
        continue;
      }
      s ++;
    //  cout << s << "S";
      r = lower_bound(pre + 1, pre + n + 1, pre[s - 1] + mid) - pre;
      if ( r > n) {
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 30 / 30
• Subtask 4: 50 / 50