Solution for 183.

solution/0100-0199/0183.Customers Who Never Order/README.md

@@ -105,4 +105,19 @@ FROM
 WHERE o.id IS NULL;
 ```
 
+```python
+import pandas as pd
+
+
+def find_customers(customers: pd.DataFrame, orders: pd.DataFrame) -> pd.DataFrame:
+    # Select the customers whose 'id' is not present in the orders DataFrame's 'customerId' column.
+    df = customers[~customers["id"].isin(orders["customerId"])]
+
+    # Build a DataFrame that only contains the 'name' column and rename it as 'Customers'.
+    df = df[["name"]].rename(columns={"name": "Customers"})
+
+    return df
+
+```
+
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solution/0100-0199/0183.Customers Who Never Order/README_EN.md

@@ -105,4 +105,19 @@ FROM
 WHERE o.id IS NULL;
 ```
 
+```python
+import pandas as pd
+
+
+def find_customers(customers: pd.DataFrame, orders: pd.DataFrame) -> pd.DataFrame:
+    # Select the customers whose 'id' is not present in the orders DataFrame's 'customerId' column.
+    df = customers[~customers["id"].isin(orders["customerId"])]
+
+    # Build a DataFrame that only contains the 'name' column and rename it as 'Customers'.
+    df = df[["name"]].rename(columns={"name": "Customers"})
+
+    return df
+
+```
+
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solution/0100-0199/0183.Customers Who Never Order/Solution.py

@@ -0,0 +1,11 @@
+import pandas as pd
+
+
+def find_customers(customers: pd.DataFrame, orders: pd.DataFrame) -> pd.DataFrame:
+    # Select the customers whose 'id' is not present in the orders DataFrame's 'customerId' column.
+    df = customers[~customers["id"].isin(orders["customerId"])]
+
+    # Build a DataFrame that only contains the 'name' column and rename it as 'Customers'.
+    df = df[["name"]].rename(columns={"name": "Customers"})
+
+    return df