bhavitha. nightcoder26

## pre_post_to_infix.c
#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
# define MAX 20
char str[MAX],stack[MAX];
int top=-1;
void push(char c)
{
   stack[++top]=c;
	#include<stdio.h>
	#include<conio.h>
	#include<string.h>
	#include<stdlib.h>
	# define MAX 20
	char str[MAX],stack[MAX];
	int top=-1;
	void push(char c)
	{
	stack[++top]=c;