leetcode重复字符串 GrokkingCodeInterview Educative.io/Grokking编码面试 编码...

leetcode重复字符串GrokkingCode访谈解决方案及其相关解决方案号码ID对应leetcode id仅研究使用联系方式：图案：滑动窗口模式：两个指针模式：合并间隔## Time O(N*logN) ( O(N*logN) for sorting +O(N) for merging )模式：树广度优先搜索## Space O(w), where ‘W’ is the maximum number of nodes on any level. ls =[root] # queue: storage the node in breadth first order while len(ls) > 0: level_width = len(ls) # the width of the current level for i in range(level_width): n = ls.pop(0) # pop ls.append( n.left ) # push left ls.append( n.right ) # push right ** Breath le