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Cod sursa(job #154580)
#include<fstream>
using namespace std;
long euclid(long x,long y){
if(y==0) return x;
if(x==0) return y;
while(y!=0){
long r=x%y;
x=y;
y=r;
}
return x;
}
int main(){
ifstream f("euclid2.in");
ofstream g("euclid2.out");
long t;
f>>t;
for(long i=1;i<=t;i++){
long a,b;
f>>a>>b;
g<<euclid(a,b)<<endl;
}
f.close();
g.close();
return 0;
}