#include <unistd.h>
#include <stdarg.h>

void prtlite(char args[],...)
{
    va_list l;
    va_start(l,args);
    char cc[] = "";
    int i = 0;
    while(args[i])
    {
        if(args[i] == '%' && args[i + 1] == 'c')
        {
            char c = va_arg(l,int);
            write(1,&c,1);
            i++;
        }else
        {
            write(1,&args[i],1);
        }
        if (args[i] == '%' && args[i + 1] == 's')
        {
            char s = va_arg(l, int);
            
        }
        i++;
    }
}
int main() {
    char c = 'y';
    prtlite("%c n %c",c,'}');
    return 0;
}

Embed on website

To embed this program on your website, copy the following code and paste it into your website's HTML: