>>381
#include<stdio.h>

int gcd(int a, int b){
int c;

while((c=a%b)) a=b,b=c;
return b;
}

int gcdp(int arr[], int arrsize){
int i, ret;

ret=arr[0];
for(i=1;i<arrsize;i++) ret=gcd(arr[i], ret);
return ret;
}

int main(void){
int arr[]={60, 70, 80, 90, 25, 100, 10, 75, 30, 35};

printf("%d\n", gcdp(arr, 10));

return 0;
}