util.TreeSet; /** * Return if string s has characters of the same order & count as t despite not containing all its letters * Problem Link: <a href="https://leetcode.com/problems/is-subsequence/">...</a> */ public class IsSubsequence { // Accepted but slow public boolean is...
Don't let this process intimidate you. In this tutorial, freeCodeCamp developer Jessica Wilkins will walk you through solving a popular Leetcode problem called Two Sum. You'll learn how she thinks and solves the challenge step-by-step. You'll also get to check out her resulting data ...
For example, I've never tried Topcoder because it's very hard to use if you are a newcomer. Somebody should explain how to take part in contests or practice there. Codeforces, Codechef and Leetcode are very user-friendly, imho.
Design leetcode - asked in amazon and fb.https://leetcode.com/discuss/interview-question/system-design/649021/Design-Leetcode https://leetcode.com/discuss/interview-question/system-design/409736/Facebook-or-System-Design-or-Hacker-Rank-LeetCode-Contest-Leadership-Board-System https://leetcode.com...
then others for specific task. 6. Practice questions on leetcode and other coding interview sites. 7. Build your portfolio site as many projects as you can of things you're interested in. 8. Once you're comfortable doing the medium and some hard coding questions...