Bit Spreading Interleave Bits with Zeros

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t val_16 = 0;
    bool temp = 0;
    for(int i=7; i>=0; i--){
        temp = val & (1 << i);
        val_16 |= (temp << (i*2));
    }
    return val_16;
}

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

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