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  1. #include<iostream>
  2. using namespace std;
  3. class Queue{
  4.     int arr[100],Front,rear,currSize,maxSize;
  5. public:
  6.     Queue(int defaultSize = 7){
  7.     Front = 0;
  8.     rear = defaultSize-1;
  9.     currSize = 0;
  10.     maxSize = defaultSize;
  11.     arr[maxSize]={0};
  12.     }
  13.     bool IsFull(){
  14.         return currSize==maxSize;
  15.     }
  16.     bool IsEmpty(){
  17.         return currSize==0;
  18.     }
  19.     void enqueue(int data){
  20.         if(!IsFull()){
  21.             rear = (rear+1)%maxSize;
  22.             currSize++;
  23.         }
  24.     }
  25.     void deqeue(){
  26.         if(!IsEmpty()){
  27.             Front = (Front+1)%maxSize;
  28.             currSize--;
  29.         }
  30.     }
  31.     int getFront(){
  32.     return arr[Front];
  33.     }
  34.  
  35. };
  36.  
  37. int main(){
  38. Queue q;
  39. for(int i=0;i<6;i++){
  40.     q.enqueue(i);
  41. }
  42. q.deqeue();
  43. q.enqueue(8);
  44. while(!q.IsEmpty()){
  45.     cout<<q.getFront()<<" ";
  46.     q.deqeue();
  47. }
  48. return 0;}
  49.  
  50.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:43:11: error: cannot bind non-const lvalue reference of type ‘int&’ to an rvalue of type ‘int’
 q.enqueue(8);
           ^
prog.cpp:19:10: note:   initializing argument 1 of ‘void Queue::enqueue(int&)’
     void enqueue(int &data){
          ^~~~~~~
stdout 
Standard output is empty
https://ideone.com/MNMqMB
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
secret

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