World is Mine

动态规划 DP · 背包 DP

Wonderful Tree!

贪心

Interesting Problem (Hard Version)

区间 DP

Interesting Problem (Easy Version)

区间 DP

Spinning Round (Hard Version)

动态规划 DP · 笛卡尔树

Spinning Round (Easy Version)

分治

Fumo Temple

Split the Multiset

数学

Make Majority

贪心

Increasing Sequence with Fixed OR

贪心 · 位运算 · 构造

The Omnipotent Monster Killer

树形 DP

Range Minimum Sum

Heartbeat

Catch the Coin

Substring and Subsequence

贪心 · 双指针 two-pointer

Two Movies

贪心

Smithing Skill

动态规划 DP

Distance to Different

动态规划 DP

Simultaneous Coloring

强连通分量 · 整体二分

Submission Bait

Array Craft

Mad MAD Sum

Grid Puzzle

Catch the Mole(Hard Version)

Catch the Mole(Easy Version)

Polygonal Segments

Maximize the Last Element

贪心

AND Reconstruction

贪心 · 位运算

Absolute Zero

贪心

Prime XOR Coloring

数论 · 位运算 · Ad-hoc

Coloring Game

二分图

Triangle Formation

数学 · 贪心

Grid Reset

贪心 · 构造

Prime Split Game

博弈论 · 数论

Grid Game

构造

Only Pluses

数学 · 贪心

Angry Monk

贪心

Gorilla and Permutation

贪心

Test of Love

动态规划 DP

Novice's Mistake

数学 · 枚举

Valuable Cards

贪心 · 数论

Ultra-Meow

组合数学

Question Marks

贪心

Parity and Sum

贪心

Light Switches

数学 · 贪心

Med-imize

动态规划 DP · 二分

Xor-Grid Problem

动态规划 DP · 状态合并

Dyn-scripted Robot (Hard Version)

中国剩余定理 CRT

Dyn-scripted Robot (Easy Version)

扩展欧几里德算法 · 中国剩余定理 CRT

Diverse Game

贪心