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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main(){
  4.     int n,c,a[100001],b[100001];
  5.     cin>>n>>c;
  6.     int k=n-c;
  7.     for(int i=0; i<n; i++) cin>>a[i];
  8.     sort(a,a+n);
  9.     int f=0;
  10.     for(int i=0; i<n-1; i++){
  11.         for(int j=i; j<k; j++){
  12.             if(j>=n) break;
  13.             b[f]=a[j+1]-a[i]; f++;    
  14.         }
  15.  
  16.     }
  17.     sort(b,b+f);
  18.     cout<<b[k]<<endl;
  19.  
  20. }
Success #stdin #stdout 0s 3808KB
comments (?)
stdin
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5 3
1
2
8
4
9
stdout
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3
https://ideone.com/3l3fZx
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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