P3105 [USACO14OPEN] Fair Photography S

题目描述

FJ's N cows (2

输入格式

无

输出格式

无

说明/提示

There are 5 cows. One of them is a white cow at position 8, and so on. FJ takes a photo of the cows from positions 3 to positions 10. There are 4 cows in this range -- 3 white and 1 spotted -- so he needs to paint one of the white cows to make it spotted.