Concise and clear

Nastya and an Array

Nastya Studies Informatics

Nastya and a Wardrobe

Nastya and a Game

枚举 · 概率论

Nastya and King-Shamans

Two Squares

Open Communication

Careful Maneuvering

Compute Power

Nikita and Order Statistics

快速傅里叶变换 FFT · 构造

The Moral Dilemma

Fingerprints

Knights of a Polygonal Table

贪心 · 平衡树 · 向量

Tesla

Suit and Tie

贪心

Leaving the Bar

Game

Number Clicker

数论 · 广度优先搜索 BFS · 逆元 · 折半搜索 meet in the middle

Cowmpany Cowmpensation

Hit the Lottery

World Cup

Convert to Ones

Roman Digits

枚举

Sky Full of Stars

Cycles in product

Good Subsegments

线段树 · 排序 · 栈

Balloons

Cutting

Mishka and Contest

Reversing Encryption

字符串

Alphabetic Removals

Equalize the Remainders

队列

Reachability from the Capital

深度优先搜索 DFS · 强连通分量

Cards and Joy

Codehorses T-shirts

Light It Up

Covered Points Count

枚举 · 排序 · 前缀和

Yet Another Problem On a Subsequence

We Need More Bosses

图论建模 · 强连通分量 · 树的直径

One Occurrence

莫队 · 线段树

Two-Paths

Polycarp's Pockets

枚举

Binary String Constructing

模拟 · 构造

Intense Heat

递推

Coins and Queries

Tree Constructing

Abbreviation

Sonya and Hotels

枚举 · 概率论

Sonya and Exhibition