Math - Problems | LightOJ

Math

Basic Math

Big Integer Arithmetic

Chinese Remainder Theorem

Combinatorics

Extended Euclid

Generating Functions

Group Theory/Burnside's lemma

Inclusion/Exclusion

Modular Arithmetic

Number Theory

Pigeonhole Principle

Probability/Expected Value

Show unsolved only

Solved by: 3445

Success rate: 44.38%

Mathematically Hard

Solved by: 2950

Success rate: 26.26%

Fibsieve's Fantabulous Birthday

Solved by: 5944

Success rate: 43.43%

Knights on a Chessboard

Solved by: 4962

Success rate: 29.17%

Solved by: 2866

Success rate: 31.52%

A Childhood Game

Solved by: 2341

Success rate: 49.67%

Solved by: 1278

Success rate: 42.02%

A Dangerous Maze

Solved by: 1784

Success rate: 70.70%

Trailing Zeroes (I)

Solved by: 2279

Success rate: 23.43%

Discovering Gold

Solved by: 1499

Success rate: 55.50%

Intelligent Factorial Factorization

Solved by: 2721

Success rate: 62.25%

Race to 1 Again

Solved by: 1286

Success rate: 67.83%

Digits of Factorial

Solved by: 4339

Success rate: 54.96%

Efficient Pseudo Code

Solved by: 1461

Success rate: 29.67%

Parallelogram Counting

Success rate: 36.24%

Solved by: 2358

Success rate: 39.92%

How Many Points?

Solved by: 1450

Success rate: 46.52%

Integer Divisibility

Solved by: 2037

Success rate: 52.60%

Just another Robbery

Success rate: 43.72%

Trailing Zeroes (II)

Solved by: 1542

Success rate: 56.70%

Arrange the Numbers

Success rate: 50.87%

Solved by: 1079

Success rate: 60.16%

Again Array Queries

Success rate: 40.92%

Problem Makes Problem

Solved by: 1198

Success rate: 49.30%

Birthday Paradox

Success rate: 49.84%

Solved by: 4095

Success rate: 77.76%

Solved by: 5055

Success rate: 38.71%

Success rate: 53.71%

Cricket Ranking

Success rate: 42.06%

Trailing Zeroes (III)

Solved by: 2760

Success rate: 53.66%

How Many Zeroes?

Solved by: 1125

Success rate: 71.81%

Success rate: 36.44%

Solved by: 1260

Success rate: 52.75%

Snakes and Ladders

Success rate: 61.56%

Success rate: 49.74%

Success rate: 52.67%

Counting Perfect BST

Success rate: 36.58%

The Vindictive Coach

Success rate: 52.14%

Josephus Problem

Success rate: 72.23%

Solved by: 1133

Success rate: 31.90%

Fantasy of a Summation

Success rate: 63.95%

Solved by: 4308

Success rate: 51.59%

Solved by: 1425

Success rate: 38.37%

Mysterious Bacteria

Success rate: 28.18%

One Unit Machine

Success rate: 70.03%

Harmonic Number

Solved by: 1121

Success rate: 45.82%

Pairs Forming LCM

Success rate: 41.37%

Harmonic Number (II)

Success rate: 73.12%

Success rate: 39.25%

Success rate: 77.74%