problem

Find two non repeating elements in an array of repeating elements

December 4, 2014 by Dhaval Dave

Given an array in which all numbers except two are repeated once.
(i.e. we have 2n+2 numbers and n numbers are occurring twice and remaining two have occurred once).
Find those two numbers in the

HackeEarth Flipkart’s Drone

November 24, 2014 by Dhaval Dave

HackeEarth Flipkart’s Drone : After listening to the news of testing of Delivery Drone
But this was only possible if two of the shipping addresses had “V1-type” road connecting them(V1-type roads are the fastest in

Sort Stack in place

November 23, 2014 by Dhaval Dave

Question is to sort a Stack in place without using extra Stack or other Data Structure.Answer :
Basic solution which comes in mind is to pop all element and sort and push into Stack again.

Python Array String

November 18, 2014 by Dhaval Dave

Arrays String

As we declare string, we can use it as Array of String.

string = ‘GoHired’

print string[0]

>> G

PS : To show OutPut we have used >> sign

string = ‘GoHired’

Given a sorted array and a number x, find the pair in array whose sum is closest to x

November 17, 2014 by Dhaval Dave

Given a sorted array and a number x, find a pair in array whose sum is closest to x.

Examples:

Input: arr[] = {10, 22, 28, 29, 32, 40}, x = 54
Output: 22 and

Given array of 0’s and 1’s. All 0’s are coming first followed by 1’s. find the position of first 1

November 14, 2014 by Dhaval Dave

Given array of 0’s and 1’s. All 0’s are coming first followed by 1’s. find the position of first 1

Example : 00001111
Output : 4Method 1 : in O(n) we can do it .

Templates in C++

November 5, 2014 by Dhaval Dave

A template is a blueprint or formula for creating a generic class or a function. The library containers like iterators and algorithms are examples of generic programming and have been developed using template concept.

example

Interfaces in C++ (Abstract Classes in C++)

November 5, 2014 by Dhaval Dave

Capabilities of a C++ class without committing to a particular implementation of that class.
The C++ interfaces are implemented using abstract classes

A class is made abstract by declaring at least one of its functions

C++ OOPs Part2

November 5, 2014 by Dhaval Dave

Polymorphism & Overloading

Polymorphism

Polymorphism occurs when there is a hierarchy of classes and they are related by inheritance.

C++ polymorphism means that a call to a member function will cause a different function to

C++ OOPs Part1

November 5, 2014 by Dhaval Dave

ABSTRACTION , INHERITANCE , ENCAPSULATION

ABSTRACTION :

Data abstraction refers to, providing only essential information to the outside world and hiding their background details
Any C++ program where you implement a class with public

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problem

Find two non repeating elements in an array of repeating elements

HackeEarth Flipkart’s Drone

Sort Stack in place

Python Array String

Arrays String

Given a sorted array and a number x, find the pair in array whose sum is closest to x

Given array of 0’s and 1’s. All 0’s are coming first followed by 1’s. find the position of first 1

Templates in C++

Interfaces in C++ (Abstract Classes in C++)

C++ OOPs Part2

Polymorphism & Overloading

Polymorphism

C++ OOPs Part1

ABSTRACTION , INHERITANCE , ENCAPSULATION

ABSTRACTION :

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