80两TLE求救

#include<bits/stdc++.h>

using namespace std;

int main(){
    int a,b;
    cin >> a >> b;
    for(int i = min(a,b);i > 0;i--){
        if(a % i == 0 && b % i == 0){
            cout << i << endl;
            return 0;
        }
    }
}