Page 626 - Computer science 868 Class 12
P. 626

22       }
                23       void addfront(int x)

                24       {
                25       if(f==-1&&r==-1)
                26       {

                27       a[++f]=x;

                28       r=0;
                29       }
                30       else if(f>0&&r<=n-1)

                31       {
                32       f--;

                33       a[f]=x;
                34       }

                35       else
                36       {

                37       System.out.println("queue full");
                38       }

                39       }
                40       void delfront()

                41       {
                42       if(f==-1&&r==-1)

                43       {
                44       System.out.println("Empty Queue");

                45       }
                46       else if(f<=r)

                47       {
                48       System.out.println("Deleting"+a[f]);

                49       f++;
                50       }
                51       else

                52       {

                53       System.out.println("Queue empty");
                54          }
                55       }





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