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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. bool fun(int mid,vector<int>&arr,int max_moves){
  4.     int sum=0;
  5.     for(int i=0;i<arr.size();i++){
  6.         sum+=(arr[i]/mid+(arr[i]%mid!=0));
  7.     }
  8.  
  9.     return sum<=max_moves;
  10.  
  11. }
  12.  
  13. int main()
  14. {
  15.     vector<int>arr={4,3,2,7};
  16.     int max_moves=5;
  17.  
  18.     int l=1; //not l=0 why cause that will cause undefined behavioun in edgecase in fun (divide by 0)/.
  19.     int h=*max_element(arr.begin(),arr.end());
  20.     int ans=-1;
  21.     while(l<=h){
  22.            int mid=l+(h-l)/2;
  23.            if(fun(mid,arr,max_moves)){
  24.                ans=mid;
  25.                h=mid-1;
  26.            }
  27.            else{
  28.                l=mid+1;
  29.            }
  30.  
  31.     }
  32.     cout<<ans<<endl;
  33.     return 0;
  34. }
Success #stdin #stdout 0s 5320KB
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https://ideone.com/Ir7M2K
language:
C++ (gcc 8.3)
created:
10 hours ago
visibility:
public

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