given a matrix, you can move right or down only and cost of each move is 1. Find an optimal way to reach to right-bottom from top-left of the matrix.
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Java question was around String pattern searching which you can do easily in around 20 minutes, if you can keep your mind calm where that clock is also ticking.
Excel Sheet Problem: Given a String in method return the column number. Or in other words, convert Excel column number in integer. Input: "A" Output: 1 Input: "AA" Output: 27 Explaination: Column A is very first column in Excel, so return 1.
Given an ordered large array of integers, find all pairs of numbers that add up to a particular given sum.
count the 1s in an integer
2 medium questions and 1 hard
Write an algorithm to return the intersect of two arrays.
Q3) Few questions on design patterns(Interpreter/ Observer/State) etc.
1) Given an array of numbers where each number has a duplicate except one, write a program to return the lone number.
What is binary search tree? Whats the time complexity of inserting? deleting? seaching? What's the time complexity for the worse case?
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