Tag: C++ coding exercise

The combination is a frequently-used technique that choose a number of items from a whole data set (sequence is not important). For example, to choose 2 items from 3, …

If you are a linux user, you may know this ‘useless’ command factor which will print the prime factors of given positive integers on command line. On execution, the factor will …

Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Note: For the purpose of this problem, we define empty string as valid …