Deque (#1200)

* deque add pop

* deque add remove

data_structures/queue/double_ended_queue.py

@@ -37,3 +37,21 @@ de.reverse()
 # printing modified deque
 print("The deque after reversing deque is : ")
 print(de)
+
+# get right-end value and eliminate
+startValue = de.pop()
+
+print("The deque after popping value at end is : ")
+print(de)
+
+# get left-end value and eliminate
+endValue = de.popleft()
+
+print("The deque after popping value at start is : ")
+print(de)
+
+# eliminate element searched by value
+de.remove(5)
+
+print("The deque after eliminating element searched by value : ")
+print(de)