Function createEXTNode

CPP/Trees/Expression_tree/BST.c:7–13

#include"Stack.h"

Node* createEXTNode(char data, Node *left, Node *right) {
	Node *newNode = malloc(sizeof(Node));
	newNode->data = data;
	newNode->left = left;
	newNode->right = right;
	return newNode;
}

int is_operator(char data) {
	switch(data) {