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#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <ctype.h>

typedef struct No
  int numero;
  struct No *pEsquerda;
  struct No *pDireita;
} No;

void criarArvore(No **pRaiz)
*pRaiz = NULL;

void inserir(No **pRaiz, int numero)
  if(*pRaiz == NULL)
    *pRaiz = (No *) malloc(sizeof(No));
    (*pRaiz)->pEsquerda = NULL;
    (*pRaiz)->pDireita = NULL;
    (*pRaiz)->numero = numero;
    if(numero < (*pRaiz)->numero)
      inserir(&(*pRaiz)->pEsquerda, numero);
    if(numero > (*pRaiz)->numero)
      inserir(&(*pRaiz)->pDireita, numero);

int menu(){
	int opcao;
	printf("\n\nO que deseja fazer? \n\n");
	printf("0 - Sair\n");
	printf("1 - Inserir Elementos\n");
	scanf("%d", &opcao);
	return opcao;

int main(void){
	int opcao;
	do {
	opcao = menu();
	switch (opcao) {
	case 0:
	case 1: 
	printf("\nOPCAO INVALIDA!");

while (opcao != 0);
return 0;	

Iniciei a implementação de inserção de elemento em árvore binária e,

apresentou o seguinte erro:

Linha  Col.                
                In function 'main':
49	2	[Error] too few arguments to function 'criarArvore'
13	6	[Note] declared here
56	2	[Error] too few arguments to function 'inserir'
18	6	[Note] declared here

O que devo fazer?

Edited by rmarquesdm

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