Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    int n;
    uint16_t res=0;
    for(n=0;n<=7;n++)
    {
        if(val&(1<<n))
        {
           res|=(1<<(2*n)) ;
        }

    }
    return res;
}

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

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

Solving Approach