CSES

CSES Solutions

Accepted solutions of CSES problemset.

Table of Contents

• Advanced Techniques

• Dynamic Programming

• Geometry

• Graph Algorithms

• Interactive Problems

• Introductory Problems

• Mathematics

• Range Queries

• Sliding Window Problems

• Sorting and Searching

• String Algorithms

• Tree Algorithms

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Advanced Techniques

Problem ID	Solution Code	Problem Statement
1628	💻 Meet in the Middle	📜 Statement
2136	💻 Hamming Distance	📜 Statement

Dynamic Programming

Problem ID	Solution Code	Problem Statement
1097	💻 Removal Game	📜 Statement
1158	💻 Book Shop	📜 Statement
1633	💻 Dice Combinations	📜 Statement
1634	💻 Minimizing Coins	📜 Statement
1635	💻 Coin Combinations I	📜 Statement
1636	💻 Coin Combinations II	📜 Statement
1637	💻 Removing Digits	📜 Statement
1638	💻 Grid Paths	📜 Statement
1745	💻 Money Sums	📜 Statement
1746	💻 Array Description	📜 Statement

Geometry

Problem ID	Solution Code	Problem Statement
2189	💻 Point Location Test	📜 Statement
2190	💻 Line Segment Intersection	📜 Statement
2191	💻 Polygon Area	📜 Statement
2192	💻 Point in Polygon	📜 Statement
2193	💻 Polygon Lattice Points	📜 Statement
2195	💻 Convex Hull	📜 Statement

Graph Algorithms

Problem ID	Solution Code	Problem Statement
1149	💻 Monsters	📜 Statement
1192	💻 Coutning Rooms	📜 Statement
1193	💻 Labyrinth	📜 Statement
1666	💻 Building Roads	📜 Statement
1667	💻 Message Route	📜 Statement
1668	💻 Building Teams	📜 Statement
1669	💻 Round Trip	📜 Statement
1671	💻 Shortest Routes I	📜 Statement
1672	💻 Shortest Routes II	📜 Statement

Interactive Problems

Problem ID	Solution Code	Problem Statement
3112	💻 Hidden Integer	📜 Statement
3139	💻 Hidden Permutation	📜 Statement

Introductory Problems

Problem ID	Solution Code	Problem Statement
1069	💻 Repetitions	📜 Statement
1070	💻 Permutations	📜 Statement
1071	💻 Number Spiral	📜 Statement
1072	💻 Two Knights	📜 Statement
1083	💻 Missing Number	📜 Statement
1086	💻 Weird Algorithm	📜 Statement
1092	💻 Two Sets	📜 Statement
1094	💻 Increasing Array	📜 Statement
1617	💻 Bit Strings	📜 Statement
1618	💻 Trailing Zeros	📜 Statement
1622	💻 Creating Strings	📜 Statement
1623	💻 Apple Division	📜 Statement
1624	💻 Chessboard and Queens	📜 Statement
1754	💻 Coin Piles	📜 Statement
1755	💻 Palindrome Reorder	📜 Statement
2165	💻 Tower of Hanoi	📜 Statement
2205	💻 Gray Code	📜 Statement
2431	💻 Digit Queries	📜 Statement
3217	💻 Knight Moves Grid	📜 Statement

Mathematics

Problem ID	Solution Code	Problem Statement
1081	💻 Common Divisors	📜 Statement
1082	💻 Sum of Divisors	📜 Statement
1095	💻 Exponentiation	📜 Statement
1712	💻 Exponentiation II	📜 Statement
1713	💻 Counting Divisors	📜 Statement
1716	💻 Distributing Apples	📜 Statement
2182	💻 Divisor Analysis	📜 Statement
2185	💻 Prime Multiples	📜 Statement

Range Queries

Problem ID	Solution Code	Problem Statement
1143	💻 Hotel Queries	📜 Statement
1646	💻 Static Range Sum Queries	📜 Statement
1647	💻 Static Range Minimum Queries	📜 Statement
1648	💻 Dynamic Range Sum Queries	📜 Statement
1649	💻 Dynamic Range Minimum Queries	📜 Statement
1650	💻 Range Xor Queries	📜 Statement
1651	💻 Range Update Queries	📜 Statement
1749	💻 List Removals	📜 Statement

Sliding Window Problems

Problem ID	Solution Code	Problem Statement
3219	💻 Sliding Window Mex	📜 Statement
3220	💻 Sliding Window Sum	📜 Statement
3221	💻 Sliding Window Minimum	📜 Statement
3222	💻 Sliding Window Distinct Values	📜 Statement
3224	💻 Sliding Window Mode	📜 Statement
3426	💻 Sliding Window Xor	📜 Statement

Sorting and Searching

Problem ID	Solution Code	Problem Statement
1073	💻 Towers	📜 Statement
1074	💻 Stick Lengths	📜 Statement
1084	💻 Apartments	📜 Statement
1090	💻 Ferris Wheel	📜 Statement
1091	💻 Concert Tickets	📜 Statement
1141	💻 Playlist	📜 Statement
1164	💻 Room Allocation	📜 Statement
1619	💻 Restaurant Customers	📜 Statement
1621	💻 Distinct Numbers	📜 Statement
1629	💻 Movie Festival	📜 Statement
1640	💻 Sum of Two Values	📜 Statement
1643	💻 Maximum Subarray Sum	📜 Statement
2162	💻 Josephus Problem I	📜 Statement
2168	💻 Nested Ranges Check	📜 Statement
2183	💻 Missing Coin Sum	📜 Statement
2216	💻 Collecting Numbers	📜 Statement

String Algorithms

Problem ID	Solution Code	Problem Statement
1731	💻 Word Combinations	📜 Statement
1732	💻 Finding Borders	📜 Statement
1733	💻 Finding Periods	📜 Statement
1753	💻 String Matching	📜 Statement
2102	💻 Finding Patterns	📜 Statement

Tree Algorithms

Problem ID	Solution Code	Problem Statement
1131	💻 Tree Diameter	📜 Statement
1132	💻 Tree Distances I	📜 Statement
1135	💻 Distance Queries	📜 Statement
1136	💻 Counting Paths	📜 Statement
1139	💻 Distinct Colors	📜 Statement
1674	💻 Subordinates	📜 Statement
1687	💻 Company Queries I	📜 Statement
1688	💻 Company Queries II	📜 Statement