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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int fun(int mid,int m){
  4.     int ans=1;
  5.     for(int i=1;i<=m;i++){
  6.         ans=ans*mid;
  7.     }
  8.     return ans;
  9. }
  10. int main()
  11. {
  12.     vector<int>a={0,0,0,0,0,1,1,1};
  13.     int n=a.size();
  14.     int l=0,r=n-1,mid=-1;
  15.     int ans=-1;
  16.     while(l<=r){
  17.         mid=(l+r)/2;
  18.         if(a[mid]==1){
  19.             ans=mid;
  20.             r=mid-1;
  21.         }
  22.         else{
  23.             l=mid+1;
  24.         }
  25.     }
  26.     cout<<"ans "<<ans<<endl;
  27.     return 0;
  28. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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ans 5
https://ideone.com/gloU7Q
language:
C++ (gcc 8.3)
created:
23 hours ago
visibility:
public

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