Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t mask = 0b0101010101010101;
    uint16_t res = 0UL;
    for (int i = 8; i>0;i--){
        
        res |= ((uint16_t)((val & (1<<(i-1))) << (i-1))) ;
      
    }
    return res & mask;
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint16_t result = spread_bits(val);
    printf("%u", result);
    return 0;
}

Solving Approach