调用merge函数,实现将指针s所指的字符串的反序和正序连接后形成一个新的字符串并放在原处

#define  _CRT_SECURE_NO_WARNING
#include<stdio.h>
#include<string.h>
int main()
{
	char str[100];
	void merge();
	printf("Please enter a string:");
	gets(str);
	merge(str);
	printf("Inverted and connecting after:");
	puts(str);
	return 0;
}
void merge(char* s)
{
	 char* p, * q, n;
	n = strlen(s);
	for (p = s + n-1, q = s + n; p >= s; p--, q++)
		*q = *p;
	*q = '\0';
}