Restricted RPS

Constanze's Machine

Shichikuji and Power Grid

图论 · 并查集 · 生成树

Hyakugoku and Ladders

Daniel and Spring Cleaning

数位 DP · 位运算 · 差分

Cursor Distance

Integer Points

Grow The Tree

The World Is Just a Programming Task (Easy Version)

Yet Another Dividing into Teams

Books Exchange (hard version)

Books Exchange (easy version)

Good Numbers (hard version)

Good Numbers (easy version)

Too Many Segments (hard version)

Too Many Segments (easy version)

By Elevator or Stairs?

Maximum Weight Subset

Berstagram

The Feast and the Bus

Trip to Saint Petersburg

Conference Problem

The Coronation

Data Center

Discarding Game

Happy Birthday

Show Must Go On

The Parade

贪心 · 二分

Projectors

网络流

Divide The Students

SmartGarden

Wires

图论

Broken Keyboard

Binary Palindromes

Minimize The Integer

Salary Changing

二分

Voting (Hard Version)

Voting (Easy Version)

Red-White Fence

数学 · 快速傅里叶变换 FFT · 快速数论变换 NTT

Copying Homework

Cleaning Robots

Even Path

Find String in a Grid

Songwriter

Regular Forestation

Performance Review

Twin Buildings

Mission Possible

Tiling Terrace

Addition Robot

线段树 · 矩阵乘法