fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define Mod 1000000007
  4. #define int long long int
  5. #define yes cout<<"Yes"<<endl;
  6. #define no cout<<"No"<<endl;
  7. int GCD(int a, int b) {
  8.     if (a == 0)
  9.         return b;
  10.     return GCD(b % a, a);
  11. }
  12. void soln()
  13. {
  14.     int b,n,x,m,y,z,cnt=0,sum=0;
  15.     cin>>n>>m;
  16.     int a[n+5];
  17.     for(int i=0;i<n;i++)cin>>a[i];
  18.  
  19.     for(int i=0;i+m<=n;i++){
  20.     	int g = a[i];
  21.     	for(int j=i+1; j<i+m;j++){
  22.     		g = GCD(g, a[j]);
  23.     	}
  24.     	sum += g;
  25.     }
  26.     cout<<sum<<endl;
  27. }
  28. signed main()
  29. {
  30.     int tc = 1;
  31.     //cin>>tc;
  32.     while(tc--)
  33.     {
  34.         soln();
  35.     }
  36. }
  37.  
  38.  
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
copy 
3 2
6 10 15
stdout
copy 
7
https://ideone.com/rhHTx1
language:
C++14 (gcc 8.3)
created:
26 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!