We have to print the pattern as given in the example below : Examples: Input : 4 Output : 1 1 12 21 123 321 12344321 123 321 12 21 1 1 Input : 5 Output : 1 1 12 21 123 321 1234 4321 1234554321 1234 4321 123 321 12 21 1 1 Approach : You can… Read More »
Programming has never been easier. Even though you may have mastered a particular programming language, there might still be some concepts that may make you dizzy on reading it. This article contains some set of tricky questions which may make you go dizzy. 1. Take a look at this terminated int main (); What will this program do?… Read More »
Given, write a program that prints the Nth number whose sum of digits is 10. Examples: Input : 2 Output : 28 Explanation : the first number is 19, whose digit sum is 10. Input : 5 Output : 55 Explanation : the first four numbers whose digit sum is 10 are 19,28,37,46. Approach: In order to obtain… Read More »
Given a singly linked list. The task is to find the sum of all of the nodes of the given linked list which are divisible by a given number k. Examples: Input : List = 7->60->8->40->1 k = 10 Output : Sum = 100 Sum of nodes: 60 + 40 = 100 Input : List = 15->7->3->9->11->5 k… Read More »
A string contains ‘0’ and ‘1’.You have to find out whether the string is dangerous or not. The string will be dangerous in the following two conditions. There are at least 7 continuous occurrences of ‘1’. There are at least 7 continuous occurrences of ‘0’. Examples: Input : 1000000001 Output : YES Explanation: It has more than 7… Read More »
In this article, you will learn to check whether an alphabet entered by the user is a vowel or a consonant. English alphabets a, e, i, o and u both lowercase and uppercase are known as vowels. Alphabets other than vowels are known as consonants. We check whether given character matches any of the 5 vowels. If yes,… Read More »
In this article, you will learn to find the roots of a quadratic equation in C programming. Quadratic Equation : In elementary algebra a quadratic equation is an equation in the form of ax2 + bx + c = 0 It is known as a quadratic equation, where a, b and c are numbers and a is not… Read More »
In this article, you will learn to generate the multiplication table of a number. Examples : Input : 2 Output : 2 * 1 = 2 2 * 2 = 4 2 * 3 = 6 2 * 4 = 8 2 * 5 = 10 2 * 6 = 12 2 * 7 = 14 2 *… Read More »
In this article, you will learn to calculate Sum of First n Natural numbers. The positive numbers 1, 2, 3… are known as natural numbers. The sum of natural numbers up to 10 is: sum = 1 + 2 + 3 + … + 10 Find the sum of numbers for every number from 1 to 4 :… Read More »
This program checks whether the input year is leap year or not. A leap year is exactly divisible by 4 except for century years (years ending with 00). The century year is a leap year only if it is perfectly divisible by 400. Leap Year : If a year is divisible by 4, 100 and 400 then it… Read More »
