Compress Interleaved Bits Reverse Bit Spreading

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

uint8_t compress_bits(uint16_t val) {
    // Your logic here
    uint8_t res=0;
    for(int i=0;i<8;i++)
    {
        //Extract the bit at position 2*i from val
        uint8_t bit = (val >> (2*i)) & 1;

        //set the extracted bit at position i in the result
        res |= (bit << i);

    }
    return res;
}

int main() {
    uint16_t val;
    scanf("%hu", &val);

    uint8_t result = compress_bits(val);
    printf("%u", result);
    return 0;
}