eBay

5 problems asked at eBay.

Easy (2)

Two Sum (Leetcode 1)

Two Pointers, Arrays

Valid Parentheses (Leetcode 20)

Stack, Strings

Medium (2)

Group Anagrams (Leetcode 49)

Arrays, Strings, Sorting...

Repeated Substring Pattern (Leetcode 459)

Strings

Not Specified (1)

Best Time to Buy and Sell Stock

Arrays, DP