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: 3513

Success rate: 44.32%

Mathematically Hard

Solved by: 3070

Success rate: 26.01%

Fibsieve's Fantabulous Birthday

Solved by: 5992

Success rate: 43.47%

Knights on a Chessboard

Solved by: 5009

Success rate: 29.24%

Solved by: 2935

Success rate: 31.68%

A Childhood Game

Solved by: 2363

Success rate: 49.80%

Solved by: 1294

Success rate: 42.00%

A Dangerous Maze

Solved by: 1807

Success rate: 70.28%

Trailing Zeroes (I)

Solved by: 2331

Success rate: 23.57%

Discovering Gold

Solved by: 1525

Success rate: 55.53%

Intelligent Factorial Factorization

Solved by: 2771

Success rate: 62.30%

Race to 1 Again

Solved by: 1310

Success rate: 67.93%

Digits of Factorial

Solved by: 4394

Success rate: 55.05%

Efficient Pseudo Code

Solved by: 1477

Success rate: 29.76%

Parallelogram Counting

Success rate: 35.77%

Solved by: 2413

Success rate: 40.21%

How Many Points?

Solved by: 1505

Success rate: 46.35%

Integer Divisibility

Solved by: 2076

Success rate: 52.74%

Just another Robbery

Success rate: 43.88%

Trailing Zeroes (II)

Solved by: 1558

Success rate: 56.66%

Arrange the Numbers

Success rate: 50.88%

Solved by: 1096

Success rate: 59.92%

Again Array Queries

Success rate: 40.97%

Problem Makes Problem

Solved by: 1279

Success rate: 49.11%

Birthday Paradox

Success rate: 49.98%

Solved by: 4140

Success rate: 77.73%

Solved by: 5106

Success rate: 38.82%

Success rate: 54.01%

Cricket Ranking

Success rate: 41.83%

Trailing Zeroes (III)

Solved by: 2809

Success rate: 53.58%

How Many Zeroes?

Solved by: 1137

Success rate: 71.83%

Success rate: 36.57%

Solved by: 1275

Success rate: 52.96%

Snakes and Ladders

Success rate: 61.61%

Success rate: 49.96%

Success rate: 52.12%

Counting Perfect BST

Success rate: 36.51%

The Vindictive Coach

Success rate: 51.87%

Josephus Problem

Success rate: 72.22%

Solved by: 1143

Success rate: 31.92%

Fantasy of a Summation

Success rate: 64.15%

Solved by: 4387

Success rate: 51.67%

Solved by: 1444

Success rate: 38.26%

Mysterious Bacteria

Success rate: 28.51%

One Unit Machine

Success rate: 70.29%

Harmonic Number

Solved by: 1135

Success rate: 45.82%

Pairs Forming LCM

Success rate: 41.40%

Harmonic Number (II)

Success rate: 73.27%

Success rate: 39.23%

Success rate: 77.84%