Demonstrates the use of variables and constants. - C Language Basics

C examples for Language Basics:Variable

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Description

Demonstrates the use of variables and constants.

Demo Code

#include <stdio.h>

#define GRAMS_PER_POUND 454/*  w w  w.  j  ava  2s .  c  o m*/

const int TARGET_YEAR = 2010;

long weight_in_grams, weight_in_pounds;

int year_of_birth, age_in_2010;

int main( void )
{
    printf("Enter your weight in pounds: ");

    scanf("%d", &weight_in_pounds);

    printf("Enter your year of birth: ");

    scanf("%d", &year_of_birth);

    weight_in_grams = weight_in_pounds * GRAMS_PER_POUND;

    age_in_2010 = TARGET_YEAR - year_of_birth;

    printf("\nYour weight in grams = %ld", weight_in_grams);

    printf("\nIn 2010 you will be %d years old\n", age_in_2010);

    return 0;
}

Result


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