Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val)
{
    uint16_t result = 0;
//     // foreward loop
// for (int i=0;i<=7;i++){
//     if (val & (1 << i))
//     result |= (1 << (2*i));
// }
// //backward loop
for (int i=7;i>=0;i--){
    result<<=2;
    if(val &(1<<i)){
        result |=0x01;

    }
}

    return result;
}

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

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

    // return 0;
}

Solving Approach