Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    int i = 0;
    uint16_t ret = 0;
    while (i < 8) {
        ret |= ((val & 1) << (i << 1));
        val >>= 1;
        i++;
    }
    return ret;
}

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

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

Solving Approach