Question

Write a program in c laungage that prints a table of the binary, octal and hexadecimal equivalents of the decimal numbers in the range1 through 256. Functions are not allowed and built-in functions for octa,binary and hexadecimal are also not allowed.

Answer 1

Below is the c solution with output screenshot

Code :

#include<stdio.h>
void convert (int num, int base)
{
    int rem = num%base;
    if(num==0)
        return;
    convert(num/base, base);

    if(rem < 10)
        printf("%d", rem);
    else
        printf("%c", rem-10+'A' );
}

int main()
{
    printf("Decimal | Binary | Octal | Hexadecimal\n");
    for(int i=1;i<=256;i++){
        printf("%d | ", i);
        convert(i,2);
        printf(" | ");
        convert(i,8);
        printf(" | ");
        convert(i,16);
        printf("\n");
    }
    return 0;
}

Output :

...continued