The unique elements of an array are the elements that appear exactly once in the array. Return the sum of all the unique elements of nums. Example 1: Input: nums = [1,2,3,2] Output: 4 Explanation: The unique elements are [1,3], and the sum is 4. 1 2 3 Example 2: Input:...
题目如下: Given an integern, return any array containingnunique integers such that they add up to 0. Example 1: Input: n = 5 Output: [-7,-1,1,3,4] Explanation: These arrays also are accepted [-5,-1,1,2,3] , [-3,-1,2,-2,4]. Example 2: Input: n = 3 Output: [-1,...
Given an array of integersarrand an integerk. Find theleast number of unique integersafter removing exactlykelements. Example 1: Input: arr = [5,5,4], k = 1 Output: 1 Explanation: Remove the single 4, only 5 is left. Example 2: Input: arr = [4,3,1,1,3,3,2], k = 3 Outp...
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002. Codewars 之 Unique In Order 解法 Implement the function unique_in_order which takes as argument a sequence and returns a list of items without any elements with the same value next to each other and preserving the original order of elements. For example: unique_in_order('AAAABBBCCDAA...
945. Minimum Increment to Make Array Unique 难度:m 1. res: # current moves d: the number of all duplicates. if n is the same as the past elements: d++ else: try to insert numbers between n and pre if could insert all, move other duplicates to be the same as n. ...
The connection between the 26 letters of the English alphabet and the MORSE array could beMORSE[characer - 'a']; Use Set to differentiate its elements, so ArrayList here is unnecessary.
You are given an array of stringsarr. A stringsis formed by the concatenation of a subsequence ofarrthat has unique characters. Returnthe maximum possible lengthofs. A subsequence is an array that can be derived from another array by deleting some or no elements without changing the order of...
Given an integer n, return any array containing n unique integers such that they add up to 0. Example 1: Input: n = 5 Output: [-7,-1,1,3,4] Explanation: These arrays also are accepted [-5,-1,1,2,3] , [-3,-1,2,-2,4]. ...
LeetCode #1304. Find N Unique Integers Sum up to Zero 题目 1304. Find N Unique Integers Sum up to Zero 解题方法 首先计算正数和负数的个数,如果两个相加得到的结果比n小1,说明需要添加一个0,然后从1开始把正数放进数组,再从-1开始把负数放进数组,需要的话再加个零就行了。 时间复杂度:O(n) ...