Bit Spreading Interleave Bits with Zeros

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    int i=0;
    uint16_t res =0x00;
    while(i<8){
    int temp = val & 1;
    temp = temp << i*2;
    res |= temp ;
    val = val>>1;
    i++;

    } 
    return res;
}

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

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