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

Code

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

void reverse(char *s,int k){
    int start = 0;
    int end = k-1;
    while(start<end){
        char temp = s[start];
        s[start] = s[end];
        s[end] = temp;
        start++;
        end--;
    }
}

void print_binary(uint16_t val) {
    int temp = val;
    char s[17];
    int k =  0;


    while(val>0){
        if(val&1){
            s[k++] ='1';
        }else{
            s[k++] = '0';
        }
        val = val>>1;
    }
    if(temp<=255){
        for(int i=k;i<8;i++){
            s[i] = '0';
        }
        s[8] = '\0';
        reverse(s,8);
    }else{
        for(int i=k;i<16;i++){
            s[i] = '0';
        }
        s[16] = '\0';
        reverse(s,16);
    }
    printf("%s",s);

}

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

Solving Approach