please write this code in C without using loops , for ,if ,while and any other functions :

Question

I want to write a c code to change a binary number to decimal and octal without using any loops and if and for and while . for exp : 00101110 and give 115 and 193

and then specify the number is odd or even.

Answer 1

Assuming the bits are in an array, high bit at index zero (in-dion)

128*a[0] + 64 *a[1]+ 32*a[2] +16*a[3]+8*a[4]+4*a[5]+2*a[6]+a[7]

if it is backwards (end-ion), then simply reverse the order of the indexes

beginning with 7 and ending with zero.

this will get you the decimal., call it X

then to change to octal, you will need the mod operator %

X/64 is the first octal digit and then x % 64 is the remainder, R

with the remainder R, do R/8 to get the 2nd octal digit, and r%8 to get the 3rd

for example x=100 ---> 100/64 = 1 with remainder 36.

then 36/8 = 4 with remainder 4, so the octal equivalent is 144