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Cod sursa(job #563053)
#include <algorithm>
using namespace std ;
int n ;
int x, y ;
int a ,b ;
int *p ;
int euclid(int a, int b) {
if (b==0)
return a ;
return euclid(b,a%b) ;
}
int main() {
freopen ("euclid2.in","r",stdin) ;
freopen ("euclid2.out","w",stdout) ;
scanf ("%d" , &n) ;
for (int i=1 ; i<=n ; ++i) {
scanf ("%d%d" , &x , &y);
printf("%d\n", euclid(x,y) ) ;
}
return 0;
}