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: 3467

Success rate: 44.38%

Mathematically Hard

Solved by: 2993

Success rate: 26.22%

Fibsieve's Fantabulous Birthday

Solved by: 5965

Success rate: 43.44%

Knights on a Chessboard

Solved by: 4984

Success rate: 29.23%

Solved by: 2880

Success rate: 31.56%

A Childhood Game

Solved by: 2351

Success rate: 49.69%

Solved by: 1284

Success rate: 42.00%

A Dangerous Maze

Solved by: 1794

Success rate: 70.62%

Trailing Zeroes (I)

Solved by: 2297

Success rate: 23.48%

Discovering Gold

Solved by: 1509

Success rate: 55.40%

Intelligent Factorial Factorization

Solved by: 2737

Success rate: 62.26%

Race to 1 Again

Solved by: 1297

Success rate: 67.94%

Digits of Factorial

Solved by: 4362

Success rate: 54.97%

Efficient Pseudo Code

Solved by: 1465

Success rate: 29.67%

Parallelogram Counting

Success rate: 36.08%

Solved by: 2374

Success rate: 40.00%

How Many Points?

Solved by: 1468

Success rate: 46.45%

Integer Divisibility

Solved by: 2053

Success rate: 52.59%

Just another Robbery

Success rate: 43.79%

Trailing Zeroes (II)

Solved by: 1552

Success rate: 56.71%

Arrange the Numbers

Success rate: 50.94%

Solved by: 1088

Success rate: 60.14%

Again Array Queries

Success rate: 40.92%

Problem Makes Problem

Solved by: 1220

Success rate: 49.26%

Birthday Paradox

Success rate: 49.84%

Solved by: 4110

Success rate: 77.75%

Solved by: 5067

Success rate: 38.73%

Success rate: 53.92%

Cricket Ranking

Success rate: 41.93%

Trailing Zeroes (III)

Solved by: 2776

Success rate: 53.65%

How Many Zeroes?

Solved by: 1131

Success rate: 71.82%

Success rate: 36.49%

Solved by: 1269

Success rate: 52.90%

Snakes and Ladders

Success rate: 61.61%

Success rate: 49.82%

Success rate: 52.71%

Counting Perfect BST

Success rate: 36.44%

The Vindictive Coach

Success rate: 52.14%

Josephus Problem

Success rate: 72.23%

Solved by: 1138

Success rate: 31.88%

Fantasy of a Summation

Success rate: 64.06%

Solved by: 4342

Success rate: 51.60%

Solved by: 1435

Success rate: 38.32%

Mysterious Bacteria

Success rate: 28.53%

One Unit Machine

Success rate: 70.06%

Harmonic Number

Solved by: 1128

Success rate: 45.86%

Pairs Forming LCM

Success rate: 41.28%

Harmonic Number (II)

Success rate: 73.21%

Success rate: 39.25%

Success rate: 77.77%