[Python] ABC006 C

問題

C – スフィンクスのなぞなぞ

回答

import sys
# input処理を高速化する
input = sys.stdin.readline

def main():
    N, M = map(int, input().split())
    
    for old in range(N):
        adult = (4*N - M - old)/2
        if adult.is_integer() and adult >= 0:
            child = N - adult - old
            if child>= 0:
                print(int(adult), old, int(child))
                break
    else:
        print(-1, -1, -1)

main()