From eabefbfd7aab4d7dc8696438bb95f6e40ec5c5d0 Mon Sep 17 00:00:00 2001
From: Rina Bao <rina.bao@hotmail.com>
Date: Thu, 20 Nov 2025 21:20:33 +0000
Subject: [PATCH] Solved lab

---
 .../lab-python-flow-control-checkpoint.ipynb  | 94 +++++++++++++++++++
 lab-python-flow-control.ipynb                 | 33 ++++++-
 2 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 .ipynb_checkpoints/lab-python-flow-control-checkpoint.ipynb

diff --git a/.ipynb_checkpoints/lab-python-flow-control-checkpoint.ipynb b/.ipynb_checkpoints/lab-python-flow-control-checkpoint.ipynb
new file mode 100644
index 0000000..52e57c5
--- /dev/null
+++ b/.ipynb_checkpoints/lab-python-flow-control-checkpoint.ipynb
@@ -0,0 +1,94 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "d3bfc191-8885-42ee-b0a0-bbab867c6f9f",
+   "metadata": {
+    "tags": []
+   },
+   "source": [
+    "# Lab | Flow Control"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3851fcd1-cf98-4653-9c89-e003b7ec9400",
+   "metadata": {},
+   "source": [
+    "## Exercise: Managing Customer Orders Optimized\n",
+    "\n",
+    "In the last lab, you were starting an online store that sells various products. To ensure smooth operations, you developed a program that manages customer orders and inventory.\n",
+    "\n",
+    "You did so without using flow control. Let's go a step further and improve this code.\n",
+    "\n",
+    "Follow the steps below to complete the exercise:\n",
+    "\n",
+    "1. Look at your code from the lab data structures, and improve repeated code with loops.\n",
+    "\n",
+    "2. Instead of asking the user to input the name of three products that a customer wants to order, do the following:\n",
+    "    \n",
+    "    a. Prompt the user to enter the name of a product that a customer wants to order.\n",
+    "    \n",
+    "    b. Add the product name to the \"customer_orders\" set.\n",
+    "    \n",
+    "    c. Ask the user if they want to add another product (yes/no).\n",
+    "    \n",
+    "    d. Continue the loop until the user does not want to add another product.\n",
+    "\n",
+    "3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for  the products that were ordered (those in \"customer_orders\")."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "977568c5-ce9f-4624-87d8-25f2670fc13b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\",\"book\",\"keychain\"]\n",
+    "inventory = {}\n",
+    "for item in products:\n",
+    "    x=int(input(f\"Please enter the number of {item}:\"))\n",
+    "    inventory[item]=x\n",
+    "print(inventory)\n",
+    "\n",
+    "customer_orders=set()\n",
+    "order_end=False\n",
+    "while order_end!=True:\n",
+    "    x=input(\"Please enter the name of the product:\")\n",
+    "    customer_orders.add(x)\n",
+    "    response=input(\"Do you want to add another product? (yes/no): \").strip().lower()\n",
+    "    if(response!=\"yes\"):\n",
+    "        order_end=True\n",
+    "\n",
+    "for product in customer_orders:\n",
+    "    if product in products:\n",
+    "        inventory.update({product:inventory[product]-1})\n",
+    "\n",
+    "print(customer_orders)\n",
+    "print(inventory)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..52e57c5 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,6 +37,37 @@
     "\n",
     "3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for  the products that were ordered (those in \"customer_orders\")."
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "977568c5-ce9f-4624-87d8-25f2670fc13b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\",\"book\",\"keychain\"]\n",
+    "inventory = {}\n",
+    "for item in products:\n",
+    "    x=int(input(f\"Please enter the number of {item}:\"))\n",
+    "    inventory[item]=x\n",
+    "print(inventory)\n",
+    "\n",
+    "customer_orders=set()\n",
+    "order_end=False\n",
+    "while order_end!=True:\n",
+    "    x=input(\"Please enter the name of the product:\")\n",
+    "    customer_orders.add(x)\n",
+    "    response=input(\"Do you want to add another product? (yes/no): \").strip().lower()\n",
+    "    if(response!=\"yes\"):\n",
+    "        order_end=True\n",
+    "\n",
+    "for product in customer_orders:\n",
+    "    if product in products:\n",
+    "        inventory.update({product:inventory[product]-1})\n",
+    "\n",
+    "print(customer_orders)\n",
+    "print(inventory)"
+   ]
   }
  ],
  "metadata": {
@@ -55,7 +86,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.4"
   }
  },
  "nbformat": 4,