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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int g(int a,int b) {
  5.     return b==0?a:g(b,a%b);
  6. }
  7.  
  8. int m(vector<int>& a) {
  9.     int n=a.size();
  10.     int x=0;
  11.  
  12.     for(int i=0;i<n;i++) {
  13.         for(int j=i+1;j<n;j++) {
  14.             x=max(x,g(a[i],a[j]));
  15.  
  16.  
  17.         }
  18.  
  19.     }
  20.  
  21.     return x;
  22. }
  23.  
  24. int main() {
  25.     vector<int> a={2,5,10,15};  
  26.     cout<<m(a)<<endl;  
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0s 5284KB
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https://ideone.com/43EVf7
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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