Create rohan11

rohan11

@@ -0,0 +1,94 @@
+#include<stdlib.h>
+#include<stdio.h>
+#define max 5
+
+int front = -1, rear = -1;
+int CQueue[max];
+
+void insert();
+int delete();
+void display();
+
+int main() {
+  int w, no;
+  for (;;) {
+    printf("\n1. Insert");
+    printf("\n2. Delete");
+    printf("\n3. Display");
+    printf("\n4. EXIT");
+    printf("\nEnter what you want :");
+    scanf("%d", & w);
+
+    switch (w) {
+    case 1:
+      insert();
+      break;
+    case 2:
+      no = delete();
+      break;
+    case 3:
+      display();
+      break;
+    case 4:
+      exit(1);
+    default:
+      printf("\nInvalid Choice !!\n");
+    }
+  }
+}
+
+void insert() {
+  int no;
+  if ((front == 0 && rear == max - 1) || front == rear + 1) {
+    printf("\nCircular Queue Is Full !\n");
+    return;
+  }
+  printf("\nEnter a number to Insert :");
+  scanf("%d", & no);
+  if (front == -1)
+    front = front + 1;
+  if (rear == max - 1)
+    rear = 0;
+  else rear = rear + 1;
+  CQueue[rear] = no;
+}
+
+int delete() {
+  int e;
+  if (front == -1) {
+    printf("\nThe Circular Queue is Empty !!\n");
+
+  }
+  e = CQueue[front];
+  if (front == max - 1)
+    front = 0;
+  else if (front == rear) {
+    front = -1;
+    rear = -1;
+  } else front = front + 1;
+  printf("\n%d was deleted !\n", e);
+  return e;
+}
+
+void display() {
+  int i;
+  if (front == -1) {
+    printf("\nThe Circular Queue is Empty ! Nothing To Display !!\n");
+    return;
+  }
+  i = front;
+  if (front <= rear) {
+    printf("\n\n");
+    while (i <= rear)
+      printf("%d ", CQueue[i++]);
+    printf("\n");
+  } else {
+    printf("\n\n");
+    while (i <= max - 1)
+      printf("%d ", CQueue[i++]);
+    i = 0;
+    while (i <= rear)
+      printf("%d ", CQueue[i++]);
+    printf("\n");
+  }
+}