To find the area of a circle inside a right angled triangle, we have the formula to find the radius of the right angled triangle, r = ( P + B – H ) / 2.Given the P, B and H are the perpendicular, base and hypotenuse respectively of a ... Read More

String is a sequence of characters. In C++ programming language, The strings can be defined in two ways −C style strings: treats the string as a character array.String Class in C++The string class can be used in a C++ program from the library ‘string’. It stores the string as a ... Read More

Fork() bomb is a Dos (Denial Of Service) attack against the linux based system. This calls the Fork() system infinite number of times that fills the memory of the program and intends to harm the system.Bash script for fork bomb:(){ :|: & };:The code explained as :( ) is function ... Read More

Counting the number of trailing zeroes in a factorial number is done by counting the number of 2s and 5s in the factors of the number. Because 2*5 gives 10 which is a trailing 0 in the factorial of a number.ExampleFactorial of 7 = 5040, the number of trailing 0’s ... Read More

The sum of squares of the first n natural numbers is found by adding up all the squares.Input - 5Output - 55Explanation - 12 + 22 + 32 + 42 + 52There are two methods to find the Sum of squares of first n natural numbers −Using Loops − the code loops through ... Read More

Smallest K digit number that divisible by X is found using the formula by checking divisible by X. The formula works in the following way −Compute minimum K digit number [min] for example: 10/100/1000 etc.Now find if min is divisible by X. if yes, then this is the answer.If not, ... Read More

Power function is calculated using the times multiple i.e. 5n is 5*5*5… n times. For this function, to work properly without using multiplication(*) and division(/) operators we will use nested loops that add the numbers n number of time.Example#include using namespace std; int main() {    int a= 4 ... Read More

The sum of squares of the first n even numbers means that, we first find the square and add all them to give the sum.There are two methods to find the sum of squares of the first n even numberUsing LoopsWe can use loops to iterate from 1 to n ... Read More

Finding the number of vowels in a string using pointers need you to understand string, vowels and how to use pointer with string.String is an array of characters. And vowels are characters from the set {a, e, i, o, u}. Pointer is a variable that stores the value of memory ... Read More

A sequence of characters or a linear array of character is known as String. Its declaration is same as define other arrays.Length of array is the number of characters in the String. There are many in-built method and other methods to find the length of string. Here, we are discussing ... Read More