Compress Interleaved Bits Reverse Bit Spreading

Code

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

uint8_t compress_bits(uint16_t val) {
    int reg = 0 ; 
    int cnt = 0 ; 
   for(int i =0 ; i<16 ; i+=2){
    int bit =  (val >>i) &1 ;
    reg |= (bit )  << (cnt++) ;  
   }
    return reg;
}

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

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

Solving Approach