如果这俩数一样呢？？？算到最后比如说i和n*m/i都一样？？？那咋整，那这个要特判一下
by qusia_MC @ 2024-02-29 19:34:02
看吧，特判一下就AC
__CODE__
```
#include <iostream>
using namespace std;
int m, n, f;
int gcd (int x, int y) {
if(y == 0)
return x;
return gcd(y, x % y);
}
signed main(){
cin >> n >> m;
if(n==m)
{
cout<<1;return 0;
}//特判
int i;
for ( i = 1; i * i <= m * n; i ++) {
if((n * m) % i == 0 && gcd(i, (n * m) / i) == n)
f ++;
}
f*=2;
cout << f ;
return 0;
}
```
by qusia_MC @ 2024-02-29 19:37:47
@[SixSeven](/user/1286053)
by qusia_MC @ 2024-02-29 19:38:02
希望对你有帮助
by qusia_MC @ 2024-02-29 19:38:24
谢谢QaQ @[William2019](/user/787512)
by SixSeven @ 2024-02-29 20:42:38