Solution: Find Two Numbers That Add Up to K
Explore three methods to find two numbers in an array that sum to a target value, including the naive nested loop, two-pointer technique after sorting, and binary search approach. Understand their time and space complexities while practicing implementations in C++ to solve this common coding interview problem efficiently.
Statement
Given an array of integers, nums, and an integer target, k, find two numbers in the array that sum up to the target k.
There is exactly one solution for each input, and each element of the array can only be used once in the solution. The order of the returned elements does not matter.
Constraints:
nums.lengthnums[i]...