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Cod sursa(job #837218)
#include <stdio.h>
long cmmdc(long a, long b)
{
if(a==0) return b;
else
if (b==0) return a;
else
{
if (a>b) return cmmdc(a%b,b);
else return cmmdc(a,b%a);
}
}
int main()
{
long n,a,b;
FILE *fin, *fout;
fin=fopen("euclid2.in","r");
fout=fopen("euclid2.out","w");
fscanf(fin,"%Ld",&n);
for (int i=1;i<=n;i++)
{
fscanf(fin,"%Ld%Ld",&a,&b);
fprintf(fout,"%Ld\n",cmmdc(a,b));
}
return 0;
}