Lucky Numbers

dp, greedy

Robbery

greedy

Vasya and Types

implementation, strings

Embassy Queue

data structures, greedy

Doctor

binary search, math, sortings

Beaver

data structures, dp, greedy, hashing, strings, two pointers

Falling Anvils

math, probabilities

LionAge II

dp

Ali goes shopping

*special problem, brute force, strings

Goshtasp, Vishtasp and Eidi

*special problem, greedy, math

Subsegments

data structures, implementation

Restoration of the Permutation

greedy

Partial Teacher

dp, graphs, greedy, implementation

Petya and File System

data structures, implementation

Harry Potter and Three Spells

implementation, math

Prime Segment

*special problem, brute force, math, number theory

Presents

*special problem, greedy

Tyndex.Brome

binary search, implementation

Eternal Victory

dfs and similar, graphs, greedy, shortest paths, trees

Trees

brute force

Cutting Jigsaw Puzzle

hashing, implementation

Three Base Stations

binary search, greedy

Game

brute force, dp, implementation

The Race

math

Parking Lot

data structures, implementation

Planting Trees

constructive algorithms

Hyperdrive

math

Let's Go Rolling!

dp, sortings

Computer Game

greedy, implementation

Wonderful Randomized Sum

greedy

String Problem

shortest paths

Shooting Gallery

dp, probabilities

Sequence of points

geometry, implementation, math

Monitor

binary search, number theory

Laser

math

Line

math, number theory

Tic-tac-toe

brute force, games, implementation