#include <stdio.h>
#include <stdarg.h>

void myprintf(char *format, ...);

main()
{
	int i = 454;
	char c0 = 'a';
	char c1 = '\n';
	char *s0 = "c = ";
	char *s1 = "\ti = ";
	myprintf("scsic", s0, c0, s1, i, c1);
	return 0;
}

void myprintf(char *format, ...)
{
	va_list va_ptr;
	char type;
	char *s;
	int i, n, m[10];

	va_start(va_ptr, format);

	for (; type = *format; format++) {
		switch(type) {
		case 'c':
			putchar(va_arg(va_ptr, int));
			break;
		case 'i':
			n = va_arg(va_ptr, int);
			for (i = 0; n > 10; i++) {
				m[i] = n % 10;
				n /= 10;
			}
			m[i] = n;
			for (; i >= 0; i--)
				putchar(m[i] + '0');
			break;
		case 's': 
			s = va_arg(va_ptr, char *);
			for (i = 0; s[i] != '\0'; i++) {
				putchar(s[i]);
			}
			break;
		}
	}
	va_end(va_ptr);
}