Berland National Library

Geometric Progression

Music

Order Book

Bear and Poker

Bear and Blocks

递推 · 线段树 · 线性递推

Bear and Elections

Bear and Three Musketeers

Vasya and Petya's Game

Modulo Sum

数学 · 背包 DP · 前缀和 · 鸽笼原理 · bitset

A Problem about Polyline

数学

"Or" Game

贪心 · 位运算

Finding Team Member

Kefa and Park

图论 · 树的遍历

Luxurious Houses

Developing Skills

Three Logos

Kolya and Tanya

Phillip and Trains

搜索 · 深度优先搜索 DFS · 剪枝

Laurenty and Shop

Duff and Weight Lifting

Duff in Love

Gourmet and Banquet

Rebranding

模拟 · 枚举

PawnChess

2Char

Anton and Lines

Divisibility

Queries on a String

Igor In the Museum

搜索

Chocolate Bar

动态规划 DP

Spongebob and Joke

Day at the Beach

Extract Numbers

The Two Routes

最短路

Approximating a Constant Range

Alternative Thinking

More Cowbell

Sorting Railway Cars

排序

Magic Spheres

Testing Robots

Chain Reaction

动态规划 DP · 二分

Hamming Distance Sum

Load Balancing

New Year and Old Property

位运算

Replace To Make Regular Bracket Sequence

Gena's Code

Longtail Hedgehog

The Labyrinth

Longest k-Good Segment

双指针 two-pointer