Задачи

Средно · Math · Number theory · Two pointers

Средно · Implementation · Strings

Трудно · Math · Sorting · Two pointers · Prefix Sums

Много лесно · Combinatorics

Лесно · Implementation

Средно · Strings · Brute force

Средно · Implementation

Средно · Constructive Algorithms · Math · Greedy algorithms

Трудно · Greedy algorithms · Graph network flows

Средно · Constructive Algorithms · Greedy algorithms

Трудно · Strings · Two pointers · Brute force

Трудно · Implementation

Средно · Greedy algorithms · Constructive Algorithms · Queries

Много трудно · Binary Search · Data Structures

Много трудно · Graphs · Depth-first Search · Disjoint set union · Dynamic programming · Combinatorics · Number theory

Средно · Data Structures · SQRT Decomposition · Prefix Sums · Range queries

Много лесно · Math · Combinatorics

Лесно · Brute force · Bitmasks

Много трудно · Constructive Algorithms · Math · Number theory

Много трудно · Graphs · Breadth-first Search · Number theory · Binary Search · Data Structures

Много трудно · Data Structures · Number theory · Queries · Segment Tree · Bitsets

Трудно · Trees · Greedy algorithms · Constructive Algorithms

Средно · Prefix Sums · Greedy algorithms

Средно · Bitwise Operations · Combinatorics · Math

Трудно · Greedy algorithms · Data Structures · Sorting