Freaks City

Maximizing Array Sum After K Negations Given an integer array, we can perform K operations where each operation flips the sign of an element. The goal is to maximize the sum after exactly K operations. Approach: Sort the array by absolute values in descending order Flip negative numbers first too maximize sum gains If remaining operations are ...

Guess Number Higher or Lower II We need to solve a game where we guess a number between 1 and n. Each wrong guess costs the amount equal to the guessed number. The goal is to find the minimum amount of money needed to guarantee a win regardless of which number is selected. Brute-Force Recursion class Solution { public: int calculateMinCost( ...