Print Binary Representation of an 8-bit or 16-bit Value

Code

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

void print_binary(uint16_t val) {
    const int len = val > 255 ? 16 : 8;
    for (int i = 0; i < len; i++)
        printf("%d", (val >> len - i - 1) & 1);
}

int main() {
    uint16_t val;
    scanf("%hu", &val);
    print_binary(val);
    return 0;
}

Solving Approach