Задачи

Многу лесно · Math

Многу лесно · Implementation

Лесно · Hashing

Многу лесно · Sorting · Hashing

Лесно · Sorting · Data Structures

Многу лесно · Implementation

Многу лесно · Implementation

Многу тешко · Bitmasks · Dynamic programming · Graph matchings · Combinatorics

Лесно · Depth-first Search

Многу тешко · Dynamic programming · Strings · Greedy algorithms · Prefix Function

Многу тешко · Data Structures · Disjoint set union · Graphs · Divide and Conquer · Segment Tree

Лесно · Breadth-first Search

Тешко · Geometry · Trees · Constructive Algorithms · Depth-first Search · Sorting

Лесно · Prefix Sums

Тешко · Dynamic programming · Prefix Sums

Средно · String suffix structures · Strings

Многу тешко · Divide and Conquer · Sparse Table · Binary Search · Range queries · Number theory

Многу лесно · Graphs

Тешко · Number theory · Math · Prefix Sums

Средно · Greedy algorithms · Bitwise Operations

Многу тешко · Strings · Prefix Function · Matrix · Dynamic programming

Многу лесно · Strings · Brute force

Лесно · Implementation

Тешко · Graphs · Greedy algorithms · Sorting