C Language Data structure: Implementing circular queues with flag bits

1#include <stdio.h>2#include <stdlib.h>3 4 #defineMAXSIZE 10//Define Queue Length5 6 Static intflag=0;//Defining flag bits7 8typedefstruct {9     int*Base;Ten     intFront; One     intRear; A}sqqueue;//Create a struct body -  - intInitqueue (Sqqueue &Q) { theQ.Base=(int*)malloc(maxsize*sizeof(int)); -     if(! Q.Base) -         return 0; -     Else{ +Q.front=q.rear=0; -         return 1; +     } A}//Create an empty list at  -  - intIsempety (Sqqueue &2) { -     if(flag==0&&q.front==q.rear) { -printf"queue is empty \ n"); -         return 0; in     } -     Else  to         return 1; +  -}//determines whether the empty the  * intIsfull (Sqqueue &p) { $     if(flag==1&&q.front==q.rear) {Panax Notoginsengprintf"queue is full \ n"); -         return 0; the     } +     Else A         return 1; the}//determine if it is full +  - voidAddqueue (Sqqueue &Q) { $     if(Isfull (Q) = =1){ $         inte; -printf"Please enter an element: \ n"); -scanf"%d",&e); theQ.Base[q.rear]=e; -Q.rear= (q.rear+1)%MAXSIZE;Wuyiflag=1; the     } -}//adding elements Wu  - voidDeletequeue (Sqqueue &Q) { About     if(Isempety (Q) = =1){ $         inte; -E=q.Base[Q.front]; -Q.front= (q.front+1)%MAXSIZE; -flag=0; Aprintf"%d\n", e); +     } the}//Subtract elements -  $ voidAction (Sqqueue &Q) { theprintf"1. queue \ n"); theprintf"2. Bring the team head element out of the team and return its value \ n"); theprintf"3. Exit \ n"); the      intA; -scanf"%d",&a); in       Switch(a) the       { the        Case 1: About       the Addqueue (Q); the            Break; the        Case 2: +            - Deletequeue (Q); the            Break;Bayi        Case 3: theExit0); the       default: -printf"input is not valid, please re-enter \ n"); -  the       } the Action (Q); the}//Action Options the  - intMain () { the sqqueue Q; the     if(Initqueue (Q)) theprintf"created successfully. \ n");94     Else{ theprintf"creation failed. "); theSystem"Pause"); the         return 0;98     } About      - Action (Q);101     102System"Pause");103      Free(Q.Base);104     return 0; the 106 107}//Main function

Although implemented with a flag bit, an error occurs when swapping an int array to a char array, where doubts remain, pending resolution.

C Language Data structure: Implementing circular queues with flag bits