题解

#include <iostream>
using namespace std;

int main() {
    int N, i;
    cin >> N >> i;
    int k = 1; 
    while (true) {
        int current_fish = N * k + i; 
        bool success = true;
        for (int cat = N; cat >= 1; cat--) {
            if (cat == 1) {
                cout << current_fish << endl;
                return 0;
            }
            if (current_fish % (N - 1) != 0) {
                success = false;
                break;
            }
            int share = current_fish / (N - 1);
            current_fish = N * share + i;
        }
        
        k++;
    }
    return 0;
}