tests/sysy_lvX/066_greatest_common_divisor.sy


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int fun(int m,int n){
	int rem;			
	while(n > 0){
		rem = m % n;
		m = n;
		n = rem;
	}
	return m;				
}
int main(){
	int n,m;
	int num;
	m=getint();
	n=getint();
	num=fun(m,n);
	putint(num);

	return 0; 
}