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Sort an array according to the order defined by another array

August 19, 2014 by Dhaval Dave

Sort an array according to the order defined by another array
Given two arrays A1[] and A2[], sort A1 in such a way that the relative order among the elements will be same as those

Connect n ropes with minimum cost

August 19, 2014 by Dhaval Dave

Connect n ropes: There are given n ropes of different lengths, we need to connect these ropes into one rope. The cost to connect two ropes is equal to sum of their lengths. We need

TicTacToe Game As Asked in Flipkart

August 17, 2014 by Dhaval Dave

Write a running code in any language to implement the famous tic-tac-toe game.
Decide which basic functions which would be required to implement the same.

Then try to code it your self else basic code

Get Minimum element in O(1) from input numbers or Stack

August 16, 2014 by Dhaval Dave

Question : Get Minimum element in O(1) from Input Numbers or Stack

– With any traditional way we can’t get minimum element in O(1)
– so we need to come up with different data structure.

simple sql injection

August 13, 2014 by Dhaval Dave

Simple SQL Injection occurs when we try to penetrate security through false login and password.
This happens because of mainly inefficient code.

Try with your self.

1) Search in Google
“inurl:admin.asp”
“inurl:login/admin.asp”
“inurl:admin/login.asp”
“inurl:adminlogin.asp”
“inurl:adminhome.asp”

Find an index i such that Arr [i] = i in array of n distinct integers sorted in ascending order.

August 12, 2014 by Dhaval Dave

Given an array of n distinct integers sorted in ascending order, write a function that returns a Fixed Point in the array such that Arr[i] = i .
If there is any Fixed Point present

Check a String is SUBSEQUENCE of another String Find Minimum length for that ( DNA Matching )

August 12, 2014 by Dhaval Dave

Main DNA sequence(a string) is given (let say strDNA) and another string to search for(let say strPAT).
You have to find the minimum length window in strDNA where strPAT is subsequence.

Example :
strDNA =

Add Sub Multiply very large number stored as string

August 10, 2014 by Dhaval Dave

Very large number like 2994320121 and 125346232 is given in character string.
You need to add, subtract and multiply two numbers and store number in character array only.

Logic
1) First way to create a

Code Chef PRGIFT Solution

August 6, 2014 by Dhaval Dave

Today is chef’s friend’s birthday. He wants to give a gift to his friend. So he was desperately searching for some gift here and there.
Fortunately, he found an array a of size n lying

Find and print longest consecutive number sequence in a given sequence in O(n)

August 6, 2014 by Dhaval Dave

Ex: Input: 1 2 5 3 6 8 7
    Output: 5 6 7 8

As given in Above example we need to find Longest Consecutive sequence in O(n)
I have implemented in O(n) considering by

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Sort an array according to the order defined by another array

Connect n ropes with minimum cost

TicTacToe Game As Asked in Flipkart

Get Minimum element in O(1) from input numbers or Stack

simple sql injection

Find an index i such that Arr [i] = i in array of n distinct integers sorted in ascending order.

Check a String is SUBSEQUENCE of another String Find Minimum length for that ( DNA Matching )

Add Sub Multiply very large number stored as string

Code Chef PRGIFT Solution

Find and print longest consecutive number sequence in a given sequence in O(n)

Join WeekEnd Online/Offline Batch from 4-April-2020 on How to Crack Coding Interview in Just 10 Weeks : Fees just 20,000 INR