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 reg = 0;
    uint8_t temp = 0;
    for(uint8_t i=0; i<8; i++)
    {
        temp = (val >> (7-i)) & 0x1;
        reg |= temp;
        if(i==7)
          return reg;
        reg = reg << 2;
    }
    return reg;
}

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

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

Solving Approach