Day 10 – Dutch Flag, Majority Element, Max Subarray, Stock Buy/Sell, Alternate Sign, Next Permutation, Leaders in Array

Focused on common array problems that involve variations of scanning, prefix matching, rearrangement, subarray sums, and greedy strategies. LeetCode 75 – Sort Colors (Dutch National Flag) 1. Brute Force – Use sort() sort(nums.begin(), nums.end()); /...