摘要: 一、递归版 s = ["1","2","3"] n = len(s) def dfs(l): if l == n: print(*s) return vis = set() for i in range(l,n): # 防止重复数字,造成答案重复 if i == l or s[i] not in v 阅读全文
posted @ 2024-07-30 14:50 gebeng 阅读(42) 评论(0) 推荐(0)