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We are trying to list out the most frequently asked interview problems or the problem given in the coding rounds of IT giants.

questions

Title
Given a string of balanced expression, find if it contains a redundant parenthesis or not. A set of parentheses is redundant if the same sub-expression is surrounded by unnecessary or multiple brackets. Print \"Yes\" if redundant else \"No\"
Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining?
Given a string of character, find the length of longest proper prefix which is also a proper suffix
You are given an array a of length n consisting of zeros. You perform n actions with this array: during the i-th action
Given K sorted arrays arranged in form of a matrix of size K*N, you are required to merge them into single sorted array
Given an mXn matrix, if an element is 0, set its entire row and column to 0. Do it in-place
You are given an array A of integers of size N. You will be given Q queries where each query is represented by two integers L, R
total questions: 7

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