/*
Program to implement a Simple Queue using Array.
Created By: Pirate
*/
#include<stdio.h>
int queue[200];
int front = -1;
int rear = -1;
int size = 0;
void enqueue();
void dequeue();
void traverse();
void main(){
int ch = 1;
printf("*** Single Queue Using Array ***");
do{
printf("\nEnter the size of Queue : ");
scanf("%d", &size);
if(size < 1){
printf("\nInvalid Queue size. \n Continue Y : 1/N : 0 - ");
scanf("%d",&ch);
if(ch == 0)
exit(0);
}
}while(size < 1 && ch == 1);
do{
printf("\n1 : Insert\n2 : Delete\n3 : Traverse\n4 : Exit\n");
scanf("%d",&ch);
switch(ch){
case 1:
enqueue();
break;
case 2:
dequeue();
break;
case 3:
traverse();
break;
case 4:
exit(0);
break;
default:
printf("\n Invalid input. \n");
}
}while(1);
}
void enqueue(){
if(rear == size - 1){
printf("\nQueue is full");
return;
}
if( rear == -1){
rear = 0;
front = 0;
}
else
rear = rear + 1;
printf("\nEnter the value to input : ");
scanf("%d", &queue[rear]);
printf("\n Success.");
}
void dequeue(){
if(front == -1){
printf("\nQueue is Empty.");
return;
}
if(front == size - 1){
front = -1;
rear = -1;
}
else if(front == rear){
front = -1;
rear = -1;
}
else
front = front + 1;
printf("\n Success.");
return;
}
void traverse(){
int i;
if(front == -1){
printf("\nQueue is Empty.");
return;
}
printf("\nQueue : \n");
for(i=rear;i>=front;i--){
printf("%d\t",queue[i]);
}
return;
}
Program to implement a Simple Queue using Array.
Created By: Pirate
*/
#include<stdio.h>
int queue[200];
int front = -1;
int rear = -1;
int size = 0;
void enqueue();
void dequeue();
void traverse();
void main(){
int ch = 1;
printf("*** Single Queue Using Array ***");
do{
printf("\nEnter the size of Queue : ");
scanf("%d", &size);
if(size < 1){
printf("\nInvalid Queue size. \n Continue Y : 1/N : 0 - ");
scanf("%d",&ch);
if(ch == 0)
exit(0);
}
}while(size < 1 && ch == 1);
do{
printf("\n1 : Insert\n2 : Delete\n3 : Traverse\n4 : Exit\n");
scanf("%d",&ch);
switch(ch){
case 1:
enqueue();
break;
case 2:
dequeue();
break;
case 3:
traverse();
break;
case 4:
exit(0);
break;
default:
printf("\n Invalid input. \n");
}
}while(1);
}
void enqueue(){
if(rear == size - 1){
printf("\nQueue is full");
return;
}
if( rear == -1){
rear = 0;
front = 0;
}
else
rear = rear + 1;
printf("\nEnter the value to input : ");
scanf("%d", &queue[rear]);
printf("\n Success.");
}
void dequeue(){
if(front == -1){
printf("\nQueue is Empty.");
return;
}
if(front == size - 1){
front = -1;
rear = -1;
}
else if(front == rear){
front = -1;
rear = -1;
}
else
front = front + 1;
printf("\n Success.");
return;
}
void traverse(){
int i;
if(front == -1){
printf("\nQueue is Empty.");
return;
}
printf("\nQueue : \n");
for(i=rear;i>=front;i--){
printf("%d\t",queue[i]);
}
return;
}
Output :
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