[AtCoder] C - 仲良し文字列|PSAtCoder|Problem Solving-Back Tracking

C - 仲良し文字列

Read more
[AtCoder] B - 特別賞|PSAtCoder|Fenwick Tree-Problem Solving-Binary Search

B - 特別賞

Read more
[AtCoder] C - AtColor|PSAtCoder|Problem Solving-Prefix Sum

C - AtColor

Read more
[AtCoder] F - 100個の円|PSAtCoder|Problem Solving-Ad-hoc-Geometry

F - 100個の円

Read more
[AtCoder] C - 錬金術士|PSAtCoder|Problem Solving-Maximum Flow

C - 錬金術士

Read more
[Codeforces] Round #431 (Div. 2) B. Tell Your World|PSCodeforces|Problem Solving-Hash Table-Geometry

Codeforces Round #431 (Div. 2) B. Tell Your World

Read more
[Codeforces] Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] A. Set Theory|PSCodeforces|Problem Solving-Math

Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] A. Set Theory

Read more
[Codeforces] Технокубок 2018 - Отборочный Раунд 1 D. Polycarp`s phone book|PSCodeforces|Problem Solving-Trie

Технокубок 2018 - Отборочный Раунд 1 D. Polycarp’s phone book

Read more
[Codeforces] Educational Round 30 C. Strange Game On Matrix|PSCodeforces|Problem Solving-Prefix Sum

Educational Codeforces Round 30 C. Strange Game On Matrix

Read more
[Codeforces] Round #442 (Div. 2) C. Slava and tanks|PSCodeforces|Problem Solving-Greedy

Codeforces Round #442 (Div. 2) C. Slava and tanks

Read more