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 ret = 0;
    // for (uint8_t i = 0; i < 8; i++) {
    //     ret <<= 2;
    //     if ((val >> (7 - i)) & 1) {
    //         ret |= 1;
    //     }
    // }

    // Solution
    uint16_t ret = 0;

    for (int i = 0; i < 8; i++) {
        uint8_t bit = (val >> i) & 1;           // Extract i-th bit
        ret |= (bit << (2 * i));             // Place in 2*i position
    }

    return ret;
}

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

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

Solving Approach

Bit Spreading

Solution is better than my code