Description

The CSES Problem Set is an online collection of algorithmic programming problems designed for learning and practice. It currently has 300 problems and is available in several languages, including C++, Java, and Python. Users can read input from standard input and write output to standard output.

After solving a problem, users can view the solutions of other users and try to hack them by providing a test case where the solution fails.

The new test case can then be added to the test data, and all submissions will be regraded. The problem set is licensed under Creative Commons BY-NC-SA 4.0. Users can also use the problem set together with recent competitive programming books, which discuss techniques and ideas useful for solving the problems.

The CSES Problem Set aims to create a comprehensive high-quality problem set for learning algorithmic programming, with new problems being gradually added

Tags

Syllabus

• Weird Algorithm95701 / 100210
• Missing Number81380 / 85876
• Repetitions71062 / 74484
• Increasing Array66290 / 69119
• Permutations58296 / 60289
• Number Spiral41268 / 45011
• Two Knights30929 / 32044
• Two Sets33385 / 36300
• Bit Strings38996 / 41196
• Trailing Zeros36512 / 39064
• Coin Piles32140 / 35472
• Palindrome Reorder29307 / 31265
• Gray Code18133 / 20721
• Tower of Hanoi16914 / 17651
• Creating Strings25250 / 26018
• Apple Division24485 / 28142
• Chessboard and Queens14539 / 14841
• Digit Queries9751 / 11754
• Grid Paths6046 / 7730
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