Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t ret_val = 0;
    uint8_t mask = 0x80;
    for(uint8_t bit=0; bit<8; bit++)
    {
        ret_val = ret_val<<1;
        ret_val |= (val) & mask;
        mask = mask>>1;
    }
    return ret_val;
}

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

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

Solving Approach