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swapping two numbers without using third variable....

Find Lucky Integer in an Array | Leetcode 1394

Maximum Subarray | Kadane's Algorithm | Leetcode 53

Adding extra code to the code copied from internet.

Check if a Word Occurs As a Prefix of Any Word in a Sentence | Leetcode 1455

Search Insert Position | Leetcode 35

Find the index of the first occurrence in a string | Leetcode 28 | O(n) time Complexity

Reverse only letters | Leetcode 917

Is Subsequence | LeetCode problem 392

Advanced Excel Course [FULL COURSE in 2 Hours]

Move Zeros | LeetCode problem 283

Search in Rotated Sorted Array | LeetCode problem 33

Concatenated Words | LeetCode problem 472

Contains Duplicate II | LeetCode problem 219

Missing Number | LeetCode problem 268

Add Digits | LeetCode problem 258

Power of Two | LeetCode problem 231

Check whether two Strings are almost equivalent| LeetCode problem 2068

Isomorphic Strings | LeetCode problem 205

Converting Numbers to Words in Excel

Valid Anagram | LeetCode problem 242

Find the Difference | LeetCode problem 389

How #developers handle bug with comment 😆😆

Longest Common Prefix | LeetCode problem 14