example05.py

"""
公鸡5元一只，母鸡3元一只，小鸡1元三只，用100元买一百只鸡，问公鸡、母鸡、小鸡各有多少只？
"""
for x in range(21):
    for y in range(34):
        z = 100 - x - y
        if z % 3 == 0 and 5 * x + 3 * y + z // 3 == 100:
            print(x, y, z)