Question

Visual Studio C# programming task:

Every year a person has a birthday.
Up until the age of 18 their parents have decided to give them the number of presents that is equal to 20 minus their age.
Part 1. Create a program that asks for their age (idiot proof, must be a number that is between 1 and 18). It then calculates how many presents they should get
Part 2. Improve this program to tell them how many presents they have received in their lifetime.

Specification:

You must use modules to decompose your problem into smaller more manageable parts.
You must use well-named variables and constants.

Answer 1

#include <stdio.h>

int main()
{
    int total,age,i;
    printf("enter the age");
    scanf("%d",&age);
    total=20;
    for(i=1;i<=age;i++)
    {
        total=total+(20-i);
    }
    printf("\ntotal number of presents are %d",total);
    total=20;
    for(i=1;i<=18;i++)
    {
        total=total+(20-i);
    }
    printf("\ntotal number of presents received in the lifetime are %d",total);
    return 0;
}

op: