Compress Interleaved Bits Reverse Bit Spreading

Code

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

uint8_t compress_bits(uint16_t val) {
    uint16_t mask = 0;
    for( int i = 0; i < 8 ; i ++){
            mask |= (( val >> i*2 ) & 1 ) << i;
    }

    return mask;
}

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

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

Solving Approach