Coding Competitions

1. Important Tips for Optimizing C/C++ Code
2. Memory Layout of C Programs

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3. Problem: Maximum Subarray Sum
4. Implement an algorithm to determine if a string has all unique characters.
5. Design an algorithm and write code to remove the duplicate characters in a string without using any additional buffer.
6. Write a method to decide if two strings are anagrams or not
7. Write a function that adds two numbers. You should not use + or any arithmetic operators
8. Write a method to shuffle a deck of cards
9. Write a method to randomly generate a set of m integers from an array of size n
10. Given an image represented by an NxN matrix, where each pixel in the image is 4 bytes, write a method to rotate the image by 90 degrees