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Can you solve this real interview question? Target Sum - You are given an integer array nums and an integer target. You want to build an expression out of nums by adding one of the symbols '+' and '-' before each integer in nums and then concatenate all
30-Day LeetCoding Challenge Solutions @ Programming language : C++ Environment : Ubuntu 16.04 , Windows 10 x64 Tool : Visual Studio Code To run the code with Visual Studio Code Windows 10 Use settings in .vscode Create folder exe Ubuntu 16.04 Use settings in .vscode_ubuntu Create folder bin...
[LeetCode] Weekly Challenge Perform String Shifts You are given a string s containing lowercase English letters, and a matrix shift, where shift[i] = [direction, amount]: direction can be 0 (for left shift) or 1 (for right shift). amount is the amount by which string s is to be shi...
Given an integer array arr, count element x such that x + 1 is also in arr. If there're duplicates in arr, count them seperately. Example 1: Input: arr = [1,2,3]Output: 2Explanation: 1 and 2 are counted cause 2 and 3 are in arr. ...
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Similar Questions Linked List Components Medium Discussion (156) Copyright ©️ 2025 LeetCode All rights reserved 2.4K 156 0 Online Case 1Case 2 head = [0,3,1,0,4,5,2,0] 9 1 2 › [0,3,1,0,4,5,2,0] [0,1,0,3,0,2,2,0] ...