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algorithm

Closed Parentheses checker

December 26, 2017 by Dhaval Dave

example explaining problem

‏Problem Statement:

You are given 3 types of parentheses (),{},[]. Now you are supposed to check whether a given string containing some parentheses is closed or not.

example depicting closed sequence… Read More

Filed Under: Amazon Interview Question, Interview Questions Tagged With: algorithm, backtracking

Knight Tour Problem (Graph – Breadth First Search)

December 22, 2017 by Dhaval Dave

Knight Tour Problem : Given a chess board of size n x n, initial position of knight and final position of knight. We need to find the minimum number of steps required to reach final … Read More

Filed Under: Algorithm, Amazon Interview Question, Flipkart Interview Questions, Graph, Microsoft Interview Questions Tagged With: algorithm, BFS, Graph

Find next greater number with same set of digits

July 20, 2014 by Dhaval Dave

Given a number n, find the smallest number that has same set of digits as n and is greater than n. If x is the greatest possible number with its set of digits, then print
… Read More

Filed Under: Amazon Interview Question, Interview Questions, problem Tagged With: algorithm, Mathematical

Implement a generic binary search algorithm for Integer Double String etc

March 20, 2014 by Dhaval Dave

A Simple Binary Search for Integers

BinarySearch(A[0..N-1], value) 
{
   low = 0
   high = N - 1
   while (low <= high) {
       mid = low + ((high - low) / 2)
       if (A[mid] > value)
           
… Read More

Filed Under: problem Tagged With: algorithm

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