C++ Coding Exercise – How to Find First Missing Number?
For example, Given nums = return 2. Note: Your algorithm should run in linear runtime complexity. Could you implement it using only constant extra space complexity? How many solutions …
Category: math
How to Reverse Bits for 32-bit Unsigned Integer in C/C++?
Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 00111001011110000010100101000000). Follow up: If …
C/C++ Coding Exercise – Find Two Single Numbers
Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements that appear only …
Bash Coding Exercise – HandShake
At the annual meeting of Board of Directors of Acme Inc, every one starts shaking hands with everyone else in the room. Given the fact that any two persons …
Algorithms to Check if Integer is a Power of Three
Question: Given an integer, write a function to determine if it is a power of three. Iterative If you divide the number (which is Power of Three) iteratively by …