leetcode 3208

난이도: MediumProblem DescriptionThere is a circle of red and blue tiles. You are given an array of integers colors and an integer k. The color of tile i is represented by colors[i]:colors[i] == 0 means that tile i is red.colors[i] == 1 means that tile i is blue.An alternating group is every k contiguous tiles in the circle with alternating colors (each tile in the group except the first and last o..