Karkit

#include <bits/stdc++.h>

using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n,a,b;
    cin >> n >> a >> b;

    int amax = n/a;
    int bmax = n/b;
    int maxamount = 0;

    for (int aam = 0; aam <= amax; aam++)
    {
        for(int bam = 0; bam <= bmax; bam++){
            if((a*aam + b*bam) <= n && (aam + bam) > maxamount){
                maxamount = aam + bam;
            }
        }
    }

    cout << maxamount;    
    flush(std::cout);
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED