Tech Mahindra

1 Set Matrix Zeroes Medium 2 Number of 1 Bits Easy 3 Valid Anagram Easy 4 Longest Consecutive Sequence Medium 5 Longest Substring Without Repeating Characters Medium 6 Evaluate Reverse Polish Notation Medium 7 Koko Eating Bananas Medium 8 Reorder List Medium 9 Merge k Sorted Lists Hard 10 Subtree of Another Tree Easy 11 Construct Binary Tree from Preorder and Inorder Traversal Medium 12 Last Stone Weight Easy 13 Combination Sum Medium 14 N-Queens Hard 15 Walls and Gates Medium 16 Reconstruct Itinerary Hard 17 Min Cost Climbing Stairs Easy 18 Maximum Product Subarray Medium 19 Coin Change 2 Medium 20 Regular Expression Matching Hard 21 Partition Labels Medium 22 Minimum Interval to Include Each Query Hard 23 Multiply Strings Medium 24 Sum of Two Integers Medium 25 Product of Array Except Self Medium 26 Container With Most Water Medium 27 Sliding Window Maximum Hard 28 Largest Rectangle in Histogram Hard 29 Median of Two Sorted Arrays Hard 30 Linked List Cycle Easy