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 output = 0;
    for(int i = 7; i >= 0; i--){
        output |= (val >> i * 2) & 1;
        if(i == 0){
            break;
        }
        output <<= 1;
    }
    return output;
}

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

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

Solving Approach