CSCE 206 Lab Structured Programming in C

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CSCE 206 Lab Structured Programming in C Fall 2018 Lecture 5 Ehsanul Haque Nirjhar

Function Block of code to perform a specific task A large problem can be solved using different functions User defined functions can take different parameters and return a result, which can be used in the main function Example: pow(base, exponent)takes 2 parameters as input and returns a result. It is a built-in function; not user- defined.

Function Syntax

Function Calling

Function Calling

Practice Problem-1 Write a program that reads in an integer value for n and then sums the integers from n to 2*n if n is nonnegative, or from 2 * n to n if n is negative. Hint: Use function for the summation of series.

Practice Problem-2 Write a program that prints all the prime numbers from 2 to 1000. Hint: Use function to check whether a number is prime or not.