From 9fbcc5f69194627207661ab5ec4b27d83e74bd68 Mon Sep 17 00:00:00 2001
From: Pranathi <pdeepak1@toromail.csudh.edu>
Date: Mon, 9 Jun 2025 14:19:35 -0700
Subject: [PATCH] Pandas1 submitted

---
 Problem1.py | 4 ++++
 Problem2.py | 5 +++++
 Problem3.py | 5 +++++
 Problem4.py | 6 ++++++
 4 files changed, 20 insertions(+)
 create mode 100644 Problem1.py
 create mode 100644 Problem2.py
 create mode 100644 Problem3.py
 create mode 100644 Problem4.py

diff --git a/Problem1.py b/Problem1.py
new file mode 100644
index 0000000..daa6435
--- /dev/null
+++ b/Problem1.py
@@ -0,0 +1,4 @@
+import pandas as pd
+list1 = [['Math', 50], ['Science',45], ['Social', 40], ['Arts', 50]]
+df = pd.DataFrame(list1, columns = ['Subject', 'Marks'])
+print (df)
\ No newline at end of file
diff --git a/Problem2.py b/Problem2.py
new file mode 100644
index 0000000..25a3b94
--- /dev/null
+++ b/Problem2.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def big_countries(world: pd.DataFrame) -> pd.DataFrame:
+    df = world[(world['area']>=3000000) | (world['population']>=25000000)]
+    return df[['name','population','area']]
\ No newline at end of file
diff --git a/Problem3.py b/Problem3.py
new file mode 100644
index 0000000..4e658fc
--- /dev/null
+++ b/Problem3.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def find_products(products: pd.DataFrame) -> pd.DataFrame:
+    df = products[(products['low_fats'] == 'Y') & (products['recyclable'] == 'Y')]
+    return df[['product_id']]
\ No newline at end of file
diff --git a/Problem4.py b/Problem4.py
new file mode 100644
index 0000000..3916441
--- /dev/null
+++ b/Problem4.py
@@ -0,0 +1,6 @@
+import pandas as pd
+
+def find_customers(customers: pd.DataFrame, orders: pd.DataFrame) -> pd.DataFrame:
+    df = customers.merge(orders, left_on = 'id', right_on = 'customerId', how = 'left')
+    df = df[df['customerId'].isna()]
+    return df[['name']].rename(columns = {'name':'Customers'})
\ No newline at end of file