C Exercises: Display the sum of first 10 natural numbers

C For Loop: Exercise-2 with Solution

Write a C program to compute the sum of the first 10 natural numbers.

Visual Presentation:

Pseudo code to find the sum of the first 10 natural numbers:

• Initialize a variable "sum" to 0
• Initialize a loop variable "i" to 1
• Repeat the following steps while i <= 10: a. Add i to the sum variable b. Increment i by 1
• Print the "sum" variable value

Sample Solution:

C Code:

#include <stdio.h>
int main()
{
    int  j, sum = 0;

    printf("The first 10 natural number is :\n");
 
    for (j = 1; j <= 10; j++)
    {
        sum = sum + j;
        printf("%d ",j);    
    }
    printf("\nThe Sum is : %d\n", sum);
}

Sample Output:

The first 10 natural number is :                                                                              
1 2 3 4 5 6 7 8 9 10                                                                                          
The Sum is : 55

Explanation:

for (j = 1; j <= 10; j++) {
  sum = sum + j;
  printf("%d ", j);
}

In the above for loop, the variable j is initialized to 1, and the loop will continue as long as j is less than or equal to 10. In each iteration of the loop, the sum variable will add the value of j to itself, and the printf function will print the value of j to the console, followed by a space character.

Finally, the loop will increment the value of j by 1, and the process will repeat until the condition j <= 10 is no longer true.

Flowchart:

C Programming Code Editor:

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