Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    uint16_t ret = 0;
    uint8_t iter = 0;
    for(int i = 0; i < 16; i+=2)
    {
        if(val & (1 << iter))
        {
            ret |= (1 << i);
        }
        iter++;
    }
    return ret;
}

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

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

Solving Approach