19 lines
317 B
C++
19 lines
317 B
C++
#include <bits/stdc++.h>
|
|
|
|
using namespace std;
|
|
|
|
// 最大公约数，辗转相除法
|
|
int gcd(int a, int b) {
|
|
return b ? gcd(b, a % b) : a;
|
|
}
|
|
|
|
int main() {
|
|
int n;
|
|
cin >> n;
|
|
while (n--) {
|
|
int a, b;
|
|
cin >> a >> b;
|
|
printf("%d\n", gcd(a, b));
|
|
}
|
|
return 0;
|
|
} |