Program To Convert Binary To Octal Number System.

/* C program to convert binary to octal number system */

#include <stdio.h>

int main()

{

int octalConstant[] = {0, 1, 10, 11, 100, 101, 110, 111};

long long binary, octal, tempBinary;

int digit, place, i;

octal = 0;

place= 1;

/* Input binary number from user */

printf("Enter any binary number: ");

scanf("%lld", &binary);

/* Copy original binary value to temp variable */

tempBinary = binary;

while(tempBinary != 0)

{

/* Extract last three digit of binary */

digit = tempBinary % 1000;

/* Find octal equivalent of 3 digit binary */

for(i=0; i<8; i++)

{

if(octalConstant[i] == digit)

{

/* Increase the place value of octal and add the previous octal value */

octal = (i * place) + octal;

break;

}

}

/* Remove the last three digit of binary */

tempBinary /= 1000;

/* Increase the place value */

place *= 10;

}

printf("Original binary number = %lld\n", binary);

printf("Octal number = %lld", octal);

return 0;

}

Output

Program To Convert Binary To Octal Number System.