Kalau stack bisa dijalanin

#include <iostream>

using namespace std;



void push(int stack[], int *top)

{

 int value;

 cin>>value;

 *top = *top +1;

 stack[*top] = value;

}



void pop(int stack[], int *top)

{

 stack[*top] = 0;

 *top = *top -1;

}



void printer(int stack[], int *top)

{

 for(int i = 0; i<=*top; i++)

 {

 cout<<stack[i];

 }

}

 

 



int main()

{

 int stack[100];

 int ch ;

 cin>>ch;

 int *top ;

 *top = -1;

 for(int i = 0; i<ch; i++)

 {

 push(stack ,top);

 }

 for(int i = 0; i<ch-1; i++)

 {

 pop(stack, top);

 }

 printer(stack, top);

 system("pause");

 return 0;

 }

 

 

Tapi kalau Queuenya kok tidak jalan ya?

#include<iostream>



using namespace std;



void insert(int queue[], int *rear)

 {

 

 int value;

 cin>>value;

 *rear= *rear +1; 

 queue[*rear] = value; 

 }

 

void hapus(int queue[],int *front, int *rear)

 {

 *front = *front + 1; 

 }

 



void printer(int queue[],int *front, int *rear)

{

 for(int i = *front; i<=*rear; i++)

 {

 cout<<queue[i];

 }

}

 

int main()

{

 int queue[100];

 int jumlah;

 cin>>jumlah;

 int *front;

 int *rear;

 *rear = -1;

 *front = -1;

 for(int i = 0; i<jumlah; i++)

 {

 insert(queue ,rear);

 }

 for(int i = 0; i<jumlah-3; i++)

 {

 hapus(queue, front, rear);

 }

 printer(queue,front, rear);

 system("pause");

 return 0;

 }