From 37fdadda69d0df16bd5a5f63e421df6fd544b445 Mon Sep 17 00:00:00 2001
From: guru_prashanth <127014978+guruprashanth2004@users.noreply.github.com>
Date: Thu, 11 Jul 2024 20:22:41 +0530
Subject: [PATCH] New Algorithm
---
data-structures/Stack/StackImplementation.py | 32 ++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 data-structures/Stack/StackImplementation.py
diff --git a/data-structures/Stack/StackImplementation.py b/data-structures/Stack/StackImplementation.py
new file mode 100644
index 0000000..e585bf7
--- /dev/null
+++ b/data-structures/Stack/StackImplementation.py
@@ -0,0 +1,32 @@
+
+from sys import maxsize
+
+def createStack():
+ stack = []
+ return stack
+
+def isEmpty(stack):
+ return len(stack) == 0
+
+def push(stack, item):
+ stack.append(item)
+ print(item + " pushed to stack ")
+
+# Function to remove an item from stack. It decreases size by 1
+def pop(stack):
+ if (isEmpty(stack)):
+ return str(-maxsize -1) # return minus infinite
+
+ return stack.pop()
+
+# Function to return the top from stack without removing it
+def peek(stack):
+ if (isEmpty(stack)):
+ return str(-maxsize -1) # return minus infinite
+ return stack[len(stack) - 1]
+
+stack = createStack()
+push(stack, str(10))
+push(stack, str(20))
+push(stack, str(30))
+print(pop(stack) + " popped from stack")
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