Blog : Online Interview Questions

In this article, We will discuss the C Program to Find the Sum of First N Natural Numbers. First of all I would like to explain what a natural number is? Then, I will demonstrate how to calculate the nth term of the natural number. Moreover, I would explain the logic to Find the Sum of First N Natural Numbers. Furthermore, I would write the logic and C Program to Find the Sum of First N Natural Numbers with output.

In the successful compilation of the program, a message is displayed on the screen as Please! Enter an integer:This program entered a number by user then store it into a variable after that found its reversed and store it in to another variable if both variables are equal then we can say that inputed number is palindrome otherwise that is not a palindrome.

This Program stores two integers one by one into the int datatype. After that find the least common factor of these two numbers as shown as output.

This Program stores two integers into the int datatype by using to variables. After that store the sum of these two variables into another variable and display it on the screen.After the successful compilation of the program, Program sums up the two entered numbers at once.

After the successful compilation of the program, this program displays the following output: Enter values for a, b, c of quadratic equation ax2+bx+c are: If user enters 1, 2, 6 then it displays two distinct complex roots exists: -1.00 + i2.24 and -1.00 - i2.24

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The internal working of this program depends upon the length of the strings.After the successful compilation of the program, a message is displayed on the screen as Enter first string: User Enter Welcome Then, again a message displayed Enter second string: If second time user entered User then the final output is Concatenated string is WelcomeUser.

This Program computes the transpose of the matrix and prints it on the screen as simply interchange the rows and columns of the matrix.