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: 3386

Success rate: 44.50%

Mathematically Hard

Solved by: 2879

Success rate: 26.39%

Fibsieve's Fantabulous Birthday

Solved by: 5891

Success rate: 43.43%

Knights on a Chessboard

Solved by: 4917

Success rate: 29.15%

Solved by: 2793

Success rate: 31.40%

A Childhood Game

Solved by: 2309

Success rate: 49.56%

Solved by: 1260

Success rate: 42.09%

A Dangerous Maze

Solved by: 1763

Success rate: 70.63%

Trailing Zeroes (I)

Solved by: 2239

Success rate: 23.35%

Discovering Gold

Solved by: 1485

Success rate: 55.83%

Intelligent Factorial Factorization

Solved by: 2660

Success rate: 61.95%

Race to 1 Again

Solved by: 1275

Success rate: 67.71%

Digits of Factorial

Solved by: 4292

Success rate: 54.92%

Efficient Pseudo Code

Solved by: 1438

Success rate: 29.56%

Parallelogram Counting

Success rate: 36.40%

Solved by: 2315

Success rate: 39.70%

How Many Points?

Solved by: 1410

Success rate: 46.48%

Integer Divisibility

Solved by: 1998

Success rate: 52.52%

Just another Robbery

Success rate: 43.77%

Trailing Zeroes (II)

Solved by: 1521

Success rate: 56.70%

Arrange the Numbers

Success rate: 50.73%

Solved by: 1069

Success rate: 60.38%

Again Array Queries

Success rate: 41.05%

Problem Makes Problem

Solved by: 1152

Success rate: 49.08%

Birthday Paradox

Success rate: 50.02%

Solved by: 4048

Success rate: 77.63%

Solved by: 5013

Success rate: 38.66%

Success rate: 53.70%

Cricket Ranking

Success rate: 42.10%

Trailing Zeroes (III)

Solved by: 2721

Success rate: 53.54%

How Many Zeroes?

Solved by: 1120

Success rate: 71.77%

Success rate: 36.24%

Solved by: 1253

Success rate: 52.68%

Snakes and Ladders

Success rate: 61.46%

Success rate: 49.85%

Success rate: 52.65%

Counting Perfect BST

Success rate: 36.68%

The Vindictive Coach

Success rate: 52.55%

Josephus Problem

Success rate: 72.44%

Solved by: 1128

Success rate: 31.94%

Fantasy of a Summation

Success rate: 63.95%

Solved by: 4254

Success rate: 51.48%

Solved by: 1409

Success rate: 38.40%

Mysterious Bacteria

Success rate: 28.19%

One Unit Machine

Success rate: 70.04%

Harmonic Number

Solved by: 1120

Success rate: 45.81%

Pairs Forming LCM

Success rate: 41.48%

Harmonic Number (II)

Success rate: 73.08%

Success rate: 39.59%

Success rate: 78.48%