#include <stdio.h>
#include <conio.h>
#include <string.h>
int main()
{
	char s[100], c;
	printf("Nhap chuoi s:");gets(s);
	printf("Nhap ki tu can tim: ");c = getche
	char *p = strchr(s, c);
	printf("\n\nDia chi cua chuoi s:%X", s);
	printf("\n\nDia chi cua ky tu  %c:%X", c,p);
	int pos = p - s;
	printf("\n\nVi tri xuat hien cua ky tu %c trong chuoi %c la %d", c,s,pos);
	getch();
	return 0;
}
	