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Cod sursa(job #209836)
#include <iostream>
#include <fstream>
//#include <cstring>
//#include <cmath>
using namespace std;
ifstream iFile("euclid2.in");
ofstream oFile("euclid2.out");
int cmmdc (long a, long b)
{ if(!b) return a;
return cmmdc(b, a%b); }
//void writeFile(long cmmdc1) {oFile<<cmmdc1<<endl; cout<<cmmdc1<<endl;}
//void readFile() {
// iFile>>T;
// for (int i=0; i<T; i++){
// iFile>>a[i]; iFile>>b[i];}
// }
int main(){
// if(iFile.fail()) return false;
// int c;
long a[100001], b[100001];
int T=0;
iFile>>T;
for(int i=0; i<T;i++)
{
iFile>>a[i]; iFile>>b[i];
oFile<<cmmdc(a[i],b[i])<<endl;
}
// writeFile(cmmdc(a[i],b[i]));//}
// iFile.close(); oFile.close();
return 0;
}