L1-096 誰管誰叫爹 分數 20

ez

// 5'46"
#include <bits/stdc++.h>
using namespace std;
bool func(int a, int b)
{
    int sum = 0;
    while(a)
    {
        sum += a % 10;
        a /= 10;
    }
    return b % sum;
}
signed main()
{
    int n;
    cin >> n;
    for(int i = 1; i <= n; ++ i)
    {
        int a, b;
        cin >> a >> b;
        if(func(a, b) && !func(b, a))cout << "A\n";
        else if(!func(a, b) && func(b, a)) cout << "B\n";
        else cout << (a > b ? "A\n" : "B\n");
    }
    return 0;
}