Задачи

Трудно · Sorting · Data Structures

Средно · Graphs · Depth-first Search

Трудно · Breadth-first Search · Graphs · Sorting · Data Structures

Лесно · Dynamic programming · Graphs

Средно · Two pointers · Data Structures

Много трудно · Suffix Array · String suffix structures · Strings

Трудно · Breadth-first Search · Depth-first Search · Graphs

Трудно · Binary Search · Greedy algorithms · Combinatorics

Лесно · Implementation

Лесно · Brute force

Средно · Greedy algorithms · Brute force

Средно · Greedy algorithms · Sorting · Two pointers

Лесно · Brute force · Hashing

Трудно · Depth-first Search

Трудно · Binary Search · Hashing · Two pointers

Лесно · Stacks

Трудно · Prefix Sums · Greedy algorithms

Трудно · Graphs · Greedy algorithms · Data Structures · Sorting · Disjoint set union

Много трудно · Matrix · Dynamic programming · Expression parsing

Много лесно · Implementation

Лесно · Brute force · Sorting

Лесно · Sorting · Greedy algorithms

Средно · Greedy algorithms · Sorting · Data Structures

Лесно · Prefix Sums

Средно · Depth-first Search · Disjoint set union · Graphs · Combinatorics