Bit Spreading Interleave Bits with Zeros

Code

#include <stdio.h>
#include <stdint.h>

uint16_t spread_bits(uint8_t val) {
   uint16_t res = 0 ; 
    for(int i = 0 ; i<8 ; i++){
        uint8_t bits = val>>i &1 ;  // gets the i th bits 
        res |=  bits<< 2*i ;   
    }
    return res;
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint16_t result = spread_bits(val);
    printf("%u", result);
    return 0;
}

Solving Approach