摘要：
Problem DescriptionCRB has N different candies. He is going to eat K candies.He wonders how many combinations he can select.Can you an... 阅读全文
摘要：
Problem DescriptionThe Sky is Sprite.The Birds is Fly in the Sky.The Wind is Wonderful.Blew Throw the TreesTrees are Shaking, Leaves a... 阅读全文