Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here

    int padded_val = 0b0;
    for (int index = 8; index > 0; index--) {
        padded_val = padded_val << 2;
        padded_val |= (val & (1 << (index-1)) ? 1 : 0);
    }

    return padded_val;
}

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

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

Solving Approach