Compress Interleaved Bits Reverse Bit Spreading

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

uint8_t compress_bits(uint16_t val) {
    // Your logic here
    uint8_t ans = 0,pos = 0;
    for(uint16_t i = 0; i <= 15; i += 2){
        ans |= (((val >> i) & 1) << pos);
        pos++;
    }
    return ans;
}

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

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