Dark Assembly

brute force, probabilities

Shooting Gallery

dp, probabilities

Wizards and Huge Prize

dp, math, probabilities

Random Query

data structures, math, probabilities, two pointers

I'm Feeling Lucky!

probabilities

Falling Anvils

math, probabilities

Jerry's Protest

brute force, combinatorics, dp, probabilities

LuoTianyi and the Floating Islands (Easy Version)

combinatorics, math, probabilities, trees

Andrey and Problem

greedy, math, probabilities

Tournament Countdown

constructive algorithms, greedy, interactive, number theory, probabilities

Guess the Cycle Size

interactive, probabilities

Bag of mice

dp, games, math, probabilities

Puzzles

dfs and similar, math, probabilities, trees

Wet Shark and Flowers

combinatorics, math, number theory, probabilities

Santa's Bot

combinatorics, math, probabilities

Ilya and Escalator

combinatorics, dp, math, probabilities

Problem with Random Tests

brute force, dp, greedy, probabilities

Game with String

implementation, probabilities, strings

Basketball Team

combinatorics, dp, math, probabilities

Little Pony and Expected Maximum

probabilities

Expecting Trouble

*special problem, probabilities

Random Events

dp, math, probabilities

Journey

dfs and similar, dp, graphs, probabilities, trees

Archer

math, probabilities

Dreamoon and WiFi

bitmasks, brute force, combinatorics, dp, math, probabilities

Sum of Two Numbers

constructive algorithms, greedy, implementation, math, probabilities

Red-Blue Shuffle

math, probabilities

Special Permutation

constructive algorithms, probabilities

Die Roll

math, probabilities