Submission #1248202

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Source Code Expand

#define _CRT_SECURE_NO_WARNINGS
#include <cstdio>

using namespace std;

int main()
{
    const int none = -1;

    int N, M;
    if (scanf("%d%d", &N, &M) < 2) return 0;

    int baby, adult, old;

    old = 0;
    // N = baby + adult;
    // M = 4 * baby + 2 * adult;
    // ∴ M - 2 * N = 2 * baby;
    if ((M - 2 * N) % 2 == 0)
    {
        baby = (M - 2 * N) / 2;
        if (baby >= 0)
        {
            adult = N - baby;
            if (adult >= 0)
            {
                printf("%d %d %d", adult, old, baby);
                return 0;
            }
        }
    }

    old = 1;
    // N = baby  + 1 + adult;
    // M = 4 * baby + 3 + 2 * adult;
    // ∴ M - 2 * N = 2 * baby - 1;
    if ((M - 2 * N - 1) % 2 == 0)
    {
        baby = (M - 2 * N - 1) / 2;
        if (baby >= 0)
        {
            adult = N - baby - 1;
            if (adult >= 0)
            {
                printf("%d %d %d", adult, old, baby);
                return 0;
            }
        }
    }

    printf("%d %d %d\n", none, none, none);
    return 0;
}

Submission Info

Judge Result