Example: Sum of Numbers in a Given Range in C using Function

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// Sum of Numbers in a Given Range in C using Function
#include <stdio.h>

// Function to make sum of given range number
int sum_of_range(int range_start, int range_end)
{
    int sum = 0;

    // Use a loop from the start range to the end range to get the values & make the sum of each value
    while (range_start <= range_end)
    {
        sum += range_start;
        range_start++;
    }
    return sum;
}

// It's the main function of the program
int main()
{
    int range_start, range_end, sum = 0;

    // Step-1 Take input from the User
    printf("Start Range: ");
    scanf("%d", &range_start);

    printf("End Range: ");
    scanf("%d", &range_end);

    // Step-3 Call the sum_of_range() function to get the sum of the input range number
    printf("Total Sum: %d", sum_of_range(range_start, range_end));
    return 0;
}