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Cod sursa(job #161961)
#include<fstream.h>
ifstream fin("euclid2.in");
ofstream fout("euclid2.out");
typedef struct{int a,b;
}nr;
nr c[50];
int n,i;
int eucl(int a,int b)
{if(a==b)return a;
else if(a>b) return eucl(b,a-b);
else return eucl(a,b-a);
}
int main()
{
fin>>n;
for(i=1;i<=n;i++)
fin>>c[i].a>>c[i].b;
for(i=1;i<=n;i++)
fout<<eucl(c[i].a,c[i].b)<<endl;
fin.close();
fout.close();
return 0;
}