Write a C program to perform the following conversions. a)Decimal to Binary Conversion b)Decimal to Hexadecimal Conversion c) Binary to Decimal Conversion

 A)Decimal to Binary Conversion

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int a[10], n, i;

    system("cls");

    printf("Enter the number to convert: ");

    scanf("%d", &n);

    for (i = 0; n > 0; i++)

    {

        a[i] = n % 2;

        n = n / 2;

    }

    printf("\nBinary of Given Number is=");

    for (i = i - 1; i >= 0; i--)

    {

        printf("%d", a[i]);

    }

    return 0;

}

B)Decimal to Hexadecimal Conversion

#include <stdio.h>

 

int main()

{

    long decimalnum, quotient, remainder;

    int i, j = 0;

    char hexadecimalnum[100];

 

    printf("Enter decimal number: ");

    scanf("%ld", &decimalnum);

 

    quotient = decimalnum;

 

    while (quotient != 0)

    {

        remainder = quotient % 16;

        if (remainder < 10)

            hexadecimalnum[j++] = 48 + remainder;

        else

            hexadecimalnum[j++] = 55 + remainder;

        quotient = quotient / 16;

    }

 

    // display integer into character

    for (i = j; i >= 0; i--)

            printf("%c", hexadecimalnum[i]);

    return 0;

}

c) Binary to Decimal Conversion

#include <stdio.h>

void main()

{

    int num, binary_val, decimal_val = 0, base = 1, rem;

    printf("Enter a binary number(1s and 0s) \n");

    scanf("%d", &num); /* maximum five digits */

    binary_val = num;

    while (num > 0)

    {

        rem = num % 10;

        decimal_val = decimal_val + rem * base;

        num = num / 10;

        base = base * 2;

    }

    printf("The Binary number is = %d \n", binary_val);

    printf("Its decimal equivalent is = %d \n", decimal_val);

}