Added assignment 29 code (in early access)

assignment-29 (Early access).cpp

@@ -0,0 +1,190 @@
+#include <iostream>
+using namespace std;
+
+class queue
+{
+    int data[20];
+    int f, r;
+
+public:
+    queue()
+    {
+        f = -1;
+        r = -1;
+    }
+
+    int isempty()
+    {
+        if (f == -1)
+        {
+            return 1;
+        }
+        else
+        {
+            return 0;
+        }
+    }
+
+    int isfull()
+    {
+        if (r >= 20)
+        {
+            return 1;
+        }
+        else
+        {
+            return 0;
+        }
+    }
+
+    void enqueue(int x)
+    {
+        if (isfull() == 1)
+        {
+            cout << "job queue is full" << endl;
+        }
+        else
+        {
+            if (f == -1)
+                f++;
+            r++;
+            data[r] = x;
+        }
+    }
+
+    void dequeue()
+    {
+        int x;
+        if (isempty())
+        {
+            cout << "job queue is empty" << endl;
+        }
+        else
+        {
+            x = data[f];
+            f++;
+            cout << x << "Job deleted " << endl;
+        }
+    }
+
+    void disp()
+    {
+        cout << "job queue is as :" << endl;
+        for (int i = f; i <= r; i++)
+        {
+            cout << data[i] << " ";
+        }
+        cout << endl;
+    }
+};
+
+int main()
+{
+    int ch, n, x, d;
+    queue q;
+    cout << "Enter the no. of jobs in queue. " << endl;
+    cin >> n;
+    cout << "Enter jobs " << endl;
+    for (int i = 0; i < n; i++)
+    {
+        cin >> d;
+        q.enqueue(d);
+    }
+    do
+    {
+        cout << "**********MENU**********" << endl;
+        cout << "1)Add job " << endl;
+        cout << "2)Delete job " << endl;
+        cout << "3)Display" << endl;
+        cout << endl;
+        cout << "Enter your choice " << endl;
+        cin >> ch;
+
+        switch (ch)
+        {
+        case 1:
+            cout << "Enter the job to be added " << endl;
+            cin >> d;
+            q.enqueue(d);
+            cout << "Job added" << endl;
+            q.disp();
+            break;
+
+        case 2:
+            q.dequeue();
+            q.disp();
+            break;
+
+        case 3:
+            q.disp();
+            break;
+
+        default:
+            cout << "Invalid choice" << endl;
+            break;
+        }
+        cout << "Do you want to continue" << endl;
+        cout << "1. YES" << endl;
+        cout << "2. NO" << endl;
+        cin >> x;
+
+    } while (x == 1);
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~ Output ~~~~~~~~~~~~~~~~~~~~~~~~~ 
+
+Enter the no. of jobs in queue. 
+10
+Enter jobs 
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+**********MENU**********
+1)Add job
+2)Delete job
+3)Display
+
+Enter your choice
+3
+job queue is as :
+1 2 3 4 5 6 7 8 9 10
+Do you want to continue
+1. YES
+2. NO
+1
+**********MENU**********
+1)Add job
+2)Delete job
+3)Display
+
+Enter your choice
+11
+Invalid choice
+Do you want to continue
+1. YES
+2. NO
+1
+**********MENU**********
+1)Add job
+2)Delete job
+3)Display
+
+Enter your choice
+2
+1Job deleted 
+job queue is as :
+2 3 4 5 6 7 8 9 10
+Do you want to continue
+1. YES
+2. NO
+2
+
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */