Programming Questions and Answers

Given a number n, print all primes smaller than or equal to n. It is also given that n is a small number.

Input : n =10

Output :

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For given a positive integer N, return the sum of digits at even places and odd places. Write a program for it.

Input : NA

Output : NA

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For given a string and an integer N, reverse N letters from the string. Write a program for it.

Input : NA

Output : NA

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Find the 4th nearest prime number for a given number n. Write a program for it.

Input : NA

Output : NA

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Sort a list of dates in ascending order given the data format shown below:

Each date is in the form ddmmmyyyy where
dd is the set {0-31}
mmm is in the set {Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec)
yyyy is four digits.

Example
dates = {'01 Mar 2017';'03 Feb 2017';'15 Jan 1998']
The array dates sort to ['15 Jan 1998';'03 Feb 2017';'01 Mar 2017';]

Input : {'01 Mar 2017';'03 Feb 2017';'15 Jan 1998']

Output :

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Given two vectors. One contains array element "ele" and other indexes "ind" to push the corresponding element at that index in new array shifting all elements to its right.

Example:
Intput:
ele = {0, 1, 2, 3, 4} ind ={0, 1, 2, 1, 2}

Output: {0, 3, 4, 1, 2}

Input : ele: {0, 1, 2} ind: {0, 1, 0}

Output :

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Write a program to generate a simple pattern.
1
12
123
1234
123
12
1

Input : 4

Output :

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Given an array, print the Next Greater Element (NGE) for every element. The Next greater Element for an element x is the first greater element on the right side of x in the array. Elements for which no greater element exist, consider next greater element as -1.

Input : NA

Output : NA

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Given a binary tree and at any moment of time, a given node starts to fire, after one-second fire reaches to all the nodes which are directly connected with given node so the fire cycle continues as same. You need to find minimum time at which whole tree will be burnt.

Input : NA

Output : NA

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Given an array with n elements and a sum x, need to count all pairs of elements in the array whose sum is equal to x. Told two approaches one using binary search and other using two pointers.

Input : NA

Output : NA

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