Difficulty Levels

Choose your challenge. Start easy and work your way up.

215
Total Problems

Tennis Contest

Find the names of players defeated by the tournament winner, from final round back to first round

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Dice Game – TCS CodeVita

Calculate the number of ways to achieve a target sum S using dice with m faces.

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Append Alphabet – Surrounding Integers

Given a matrix containing integers and alphabets, append each alphabet to all surrounding integers in the 3x3 neighborhood.

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Two Matrix Spiral Print

Print values from two square matrices in a clockwise spiral pattern, alternating between matrices for each row/column.

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SQL – Top Revenue Grossed By Year In Movies

SQL query to find the highest revenue movie for each year, sorted by year in descending order

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Developing a To-Do List Application Using PHP and SQL

Build a complete To-Do List web application using PHP for backend logic and SQL for data storage with full CRUD operations

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Creating a Contact Form with AJAX

Build a dynamic contact form that sends user data to a server using AJAX without page reload

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Print Numbers & Ranges

Given N unique integers, print integers and integer ranges in sorted order, where consecutive integers are represented as ranges.

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Series – Decreasing Limits

Print integers in decreasing limits from N to 1, then N-1 to 2, then N-2 to 3, and so on until the limits meet.

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Maximum Sum – Equal Digits Sum

Find the maximum sum of any two integers from a list whose digit sums are equal, or return -1 if no such pair exists.

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Zig-Zag Swap – Columns

Swap matrix columns in a zig-zag pattern where halves of columns are exchanged based on specific pairing rules

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Integer – Max Factor Count

Find the integer with the maximum number of factors from a given list of integers

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