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 num = 0;
    uint8_t p = 1;
    for (int i = 0; i < 8; ++i)
    {
        num |= ((val & 1) << i);
        val >>= 2;
    }

    return num;
}

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

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

Solving Approach