Question Link : https://leetcode.com/problems/guess-number-higher-or-lower/

Difficulty: Easy

Question

We are playing the Guess Game. The game is as follows: I pick a number from 1 to n. You have to guess which number I picked. Every time you guess wrong, I will tell you whether the number I …

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Question Link : https://leetcode.com/problems/search-a-2d-matrix/

Difficulty: Medium

Question

Write an efficient algorithm that searches for a value target in an m x n integer matrix matrix. This matrix has the following properties:

Integers in each row are sorted from left to right. The first integer of each row …

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