Q2data_processing.md

title	tags
Determine Top Product by Sales	sorting data processing sales

Problem Statement

Write a function top_selling_product that processes a list of tuples containing product names and their sales. The function should:

1. Sort the products by their sales in descending order.
2. In case of a tie, choose the product that comes first alphabetically.
3. Return the name of the top-selling product.

Input

A list of tuples where each tuple contains:

• product_name (str): The name of the product.
• sales (int): The total sales of the product.

Output

A string containing the name of the top-selling product.

Solution

<prefix>

</prefix>
<template>
def top_selling_product(sales_data):
    '''
    Determine the top-selling product based on sales data.
    
    Arguments:
    sales_data: list of tuples - [(product_name (str), sales (int))]
    
    Returns:
    str - The name of the top-selling product.
    '''
    <los>...</los>
    <sol>
    # Sort products by sales in descending order and by name alphabetically
    sorted_data = sorted(sales_data, key=lambda x: (-x[1], x[0]))
    return sorted_data[0][0]  # Return the product name with the highest sales
    </sol>
</template>
<suffix>
input_data = input().strip()
sales_data = eval(input_data)
result = top_selling_product(sales_data)
print(result)
</suffix>
<suffix_invisible>

</suffix_invisible>

Public Test Cases

Input 1

[('ProductA', 150), ('ProductB', 200), ('ProductC', 200)]

Output 1

ProductB

Input 2

[('Alpha', 300), ('Beta', 300), ('Gamma', 250)]

Output 2

Alpha

Input 3

[('WidgetX', 400), ('WidgetY', 100), ('WidgetZ', 400)]

Output 3

WidgetX

Private Test Cases

Input 1

[('Item1', 50), ('Item2', 75), ('Item3', 75)]

Output 1

Item2

Input 2

[('Phone', 500), ('Laptop', 500), ('Tablet', 300)]

Output 2

Laptop

Input 3

[('Chair', 10), ('Table', 15), ('Desk', 15)]

Output 3

Desk