You are given an arraynumsof non-negative integers.numsis considered special if there exists a numberxsuch that there are exactlyxnumbers innumsthat are greater than or equal tox. Notice thatxdoes not have to be an element innums. Returnxif the array is special, otherwise, return-1. It ...
设置x从0开始遍历到len(nums),每次循环内再遍历nums数组,统计有多少个数大于等于x记为count,如果统计的结果大于x就break此次循环。遍历数组的循环结束后判断x是否等于count,如果是就返回x,不是的话就返回-1。 时间复杂度:O(n*n) 空间复杂度:O(1) 代码 classSolution:defspecialArray(self,nums:List[int])->...
Given an arraynums(consisting ofonlyintegers0,1, and2), returnthenumber of different subsequencesthat are special. Since the answer may be very large,return it modulo109+ 7. Asubsequenceof an array is a sequence that can be derived from the array by deleting some or no elements without cha...
题目地址:https://leetcode.com/problems/groups-of-special-equivalent-strings/description/题目描述:You are given an array A of strings.Two strings S and T are special-equivalent if after any number of moves, S == T.A move consists of choosing two indices i and j with i % 2 == j % ...
[leetcode] 1475. Final Prices With a Special Discount in a Shop 技术标签: python leetcode题解Description Given the array prices where prices[i] is the price of the ith item in a shop. There is a special discount for items in the shop, if you buy the ith item, then you will ...
[leetcode] 893. Groups of Special-Equivalent Strings Description You are given an array A of strings. A move onto S consists of swapping any two even indexed characters of S, or any two odd indexed characters of S. Two strings S and T are special-equivalent if after any number of ...
第k列前的格子1 2 .. 按要求填到满格,然后第k列及后面的格子,都从左到右填递增1的数。 31920 Groups of Special-Equivalent Strings result.add(odd_even) return len(result) Reference https://leetcode.com/problems/groups-of-special-equivalent-strings 33030 gateway 报错 allowedOrigins cannot contain ...
:type num1: str :type num2: str :rtype: str """ifnum1=='0'ornum2=='0':return'0'num1,num2=num1[::-1],num2[::-1]res,pre_res='',''foriinxrange(len(num1)):res,carry='',0res+='0'*iforjinnum2:temp=int(num1[i])*int(j)+carry ...
Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [-2,1,-3,4,-1,2,1,-5,4], the contiguous subarray [4,-1,2,1] has the largest sum = 6. ...
今天介绍的是LeetCode算法题中Easy级别的第209题(顺位题号是893)。 You are given an array A of strings. Two strings S and T are special-equivalent if after any number of moves, S == T. A move consists of choosing two indices i and j with i % 2 == j % 2, and swapping S[i] wi...