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Articles tagged with #cpp
Question Suppose an array of length n sorted in ascending order is rotated between 1 and n times. For example, the array nums = [0,1,2,4,5,6,7] might become: [4,5,6,7,0,1,2] if it was rotated 4 times. [0,1,2,4,5,6,7] if it was rotated 7 times. No...
class Solution { public: int missingNumber(vector<int>& nums) { int result = nums.size(); for (int i = 0; i < nums.size(); i++) { result ^= i ^ nums[i]; } return result; } }; Question Given an ar...
Problem Overview Given an integer n, return an array ans of length n + 1 where ans[i] is the number of set bits in the binary representation of i. Example: n = 5 → Output: [0, 1, 1, 2, 1, 2] Constraints: 0 <= n <= 10^5 Solution 1: Brute Force Thi...
