Given a 5x5 board containing random characters, find all words that can be formed from consecutive adjacent (diagonals count) characters.
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different between array and heap
in an array of characters find the character that is repeated the most
Write production quality code to find whether a given binary tree is a BST or not. You can't make any global variable.
Consider a simple array. What is the time complexity to insert, search, delete an element?
Given an array of integers [1,2,3,4]. and target t = 5. Come up with a solution that will print out all the unique pairs in the array that are equal t.
Write a program to reverse the words in a string in place. for eg; " I am sam " --> " sam am I "
How to find the unique integer in an array, where all the other numbers appear twice.
Questions are easy if you've practised using CTCI & Leetcode
Target Sum from leetcode
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