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- #include <iostream>
- using namespace std;
- const int N=200;
- int v[N];
- int main(){
- int n, C, r;
- cin>>n;
- C=0;
- for(int i=0; i<n; i++)
- cin>>v[i];
- for(int i=0; i<n; i++){
- do{
- r=v[n-1]%v[i];
- v[n-1]=v[i];
- v[i]=r;
- } while(r!=0);
- if(v[n-1]==1)
- C++;
- }
- cout<<C;
- return 0;
- }
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