Compress Interleaved Bits Reverse Bit Spreading

Code

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

uint8_t compress_bits(uint16_t val) {
    // Your logic here
    // 16 bits -> 8bits :)))
    uint8_t reg = 0x00;
    for(uint8_t i=0; i<8; i++){
        if((val>>2*i)&1){
            reg |= (1<<i);
        }
    }
    return reg;
}

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

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

Solving Approach