Factory

Valuable Resources

Calculating Function

递推

OR in Matrix

Palindrome Transformation

字符串 · 贪心

Valid Sets

LIS of Sequence

动态规划 DP · 二分 · 枚举

Fight the Monster

Strip

Prefix Product Sequence

数学 · 数论 · 构造

Conveyor Belts

Tourists

线段树 · 树链剖分 · 圆方树

Giga Tower

Candy Boxes

SwapSort

BerSU Ball

Given Length and Sum of Digits...

Unbearable Controversy of Being

Hiking

动态规划 DP · 二分 · 分数规划

Special Matrices

Team Olympiad

Queue

Hacking Cypher

Chocolate

Restoring Increasing Sequence

字符串 · 枚举 · 构造

Treeland Tour

Up the hill

New York Hotel

Deciphering

Vanya and Cubes

模拟 · 数学 · 枚举

Vanya and Lanterns

Vanya and Exams

Vanya and Computer Game

Vanya and Field

数学

Vasya and Football

Vasya and Wrestling

Vasya and Basketball

Vasya and Chess

Vasya and Polynomial

Treasure

Obsessive String

字符串 · 递推 · 前缀和

Helping People

Birthday

Sharti

Digital Counter

Modular Equations

Minimum Difficulty

Secret Combination

Removing Columns

Tennis Game