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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. bool fun(int mid, vector<int>arr,int m){
  4.      vector<int>a(arr.size(),-1);
  5.     for(int i=0;i<arr.size();i++){
  6.         a[i]=(i+1)*mid+arr[i];
  7.     }
  8.     sort(a.begin(),a.end());
  9.     int sum=0;
  10.     for(int i=0;i<mid;i++){
  11.         sum+=a[i];
  12.     }
  13.    if(sum<=m)return true;
  14.    return false;
  15. }
  16. int main()
  17. {
  18.     vector<int>arr={4, 3, 2, 1};
  19.     sort(arr.begin(),arr.end());
  20.     int n=arr.size();
  21.     int max_score=33;
  22.     int ans=0;
  23.     int l=1;
  24.     int h=n;
  25.  
  26.     while(l<=h){
  27.            int mid=l+(h-l)/2;
  28.            //cout<<"mid"<<mid<<endl;
  29.            if(fun(mid,arr,max_score)){
  30.                ans=mid;
  31.                l=mid+1;
  32.            }
  33.            else{
  34.                h=mid-1;
  35.            }
  36.            //cout<<"ans"<<ans<<endl;
  37.     }
  38.     cout<<ans<<endl;
  39.     return 0;
  40. }
Success #stdin #stdout 0s 5324KB
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https://ideone.com/FzqrKI
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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