#include
#include
int main ()
{
void copystr(char *,char *,int);
int m;
char str1[20],str2[20];
printf("input string:");
gets(str1);
printf("which character that begin to copy?");
scanf("
#include
#include
int main()
{
void copystr(char *,char *,int);
int m;
char str1[20],str2[20];
printf("input string:");
gets(str1);
printf("which character that begin to copy?");
scanf("
