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(uint8_t i=0; i<8; i++) {
        res |= (((val >> i) & 0x01) << (i*2));
    }

    return res;
}

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

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

Solving Approach