Submission #1001803

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1001803	2024-06-19 07:49:38	vjudge1	Liteh and Newfiteh (INOI20_litehfiteh)	C++17	30 / 100	2037 ms	1628 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
const int N = 1e5+10;
int lg[N], n, a[N];
int calc(int l, int r, int dec=0) {
  if(lg[r-l+1] == 0)return -1;
  if(l == r) {
    if(a[l]-dec > 1)return -1;
    return a[l]-dec;
  }
  int mn = 1e9;
  for(int i = l;i<=r;i++) {
    mn=min(mn, a[i]-dec);
  }
  mn = (mn>0);
  int mid = (l+r)/2;
  long long L = calc(l, mid, dec+mn);
  long long R = calc(mid+1, r, dec+mn);
  if(L == -1 or R==-1)return -1;
  return L+R+mn;
}
int main () {
  {
    int cntlg=1;
    for(int i = 1;i<N;i*=2) {
      lg[i]=cntlg++;
    }
  }
  cin >> n;
  for(int i = 0;i<n;i++) {
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 0 / 70