Bit Spreading Interleave Bits with Zeros

Code

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

void spread_bits(uint8_t val) {
    uint16_t s=0;
    for(int i=0;i<8;i++){
        if(val&(1<<i)){s|=(1<<(i*2));}
    }
    printf("%u", s);
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);
    spread_bits(val);
    return 0;
}

Solving Approach