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Module DEMO-32-58DEMO-C-32

Sum of Numbers

DEMO-C-32 • Programming in C

Browser-only practice

Problem Statement

Write a C program that calculates the sum of all integers from 1 to 20 (inclusive) using a loop.

Your program should output the result in the format: "The sum is: X" where X is the calculated sum.

This exercise helps you practice using loops to perform repetitive calculations.

Constraints

• Use a loop (for, while, or do-while) to calculate the sum • Do not hardcode the result • The program should work without any user input

Input Format

This program takes no input. It should calculate the sum directly.

Output Format

Output a single line in the format: "The sum is: X" where X is the sum of integers from 1 to 20.

Sample Testcases

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Sample #1
Public sample
Input

                                    
Output
The sum is: 210

                                    
Explanation
Sample test case showing the expected output format. The sum of numbers from 1 to 20 is 210.
                                

                                                    

                    

                

                

            


            

                

                    

                        

                            

                                
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