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Cod sursa(job #958015)
#include <iostream>
#include <stdio.h>
using namespace std;
#define minim(a, b) ((a < b) ? a : b)
int main()
{
int T, A, B;
int i, j ;
freopen("euclid2.in", "r", stdin);
freopen("euclid2.out", "w", stdout);
scanf("%d", &T);
for(i=T; i>0; --i)
{
scanf("%d %d", &A,&B);
for(j= minim(A,B); j > 0; j--)
{
if (A % j == 0 && B% j == 0)
{
printf("%d", j);
break;
}
}
}
return 0;
}