Compress Interleaved Bits Reverse Bit Spreading

Code

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

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

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

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

Solving Approach