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: 3459

Success rate: 44.39%

Mathematically Hard

Solved by: 2966

Success rate: 26.25%

Fibsieve's Fantabulous Birthday

Solved by: 5957

Success rate: 43.44%

Knights on a Chessboard

Solved by: 4976

Success rate: 29.21%

Solved by: 2874

Success rate: 31.54%

A Childhood Game

Solved by: 2347

Success rate: 49.68%

Solved by: 1281

Success rate: 41.99%

A Dangerous Maze

Solved by: 1785

Success rate: 70.64%

Trailing Zeroes (I)

Solved by: 2284

Success rate: 23.40%

Discovering Gold

Solved by: 1500

Success rate: 55.46%

Intelligent Factorial Factorization

Solved by: 2725

Success rate: 62.26%

Race to 1 Again

Solved by: 1286

Success rate: 67.83%

Digits of Factorial

Solved by: 4345

Success rate: 54.97%

Efficient Pseudo Code

Solved by: 1463

Success rate: 29.67%

Parallelogram Counting

Success rate: 36.24%

Solved by: 2365

Success rate: 39.97%

How Many Points?

Solved by: 1456

Success rate: 46.50%

Integer Divisibility

Solved by: 2040

Success rate: 52.63%

Just another Robbery

Success rate: 43.88%

Trailing Zeroes (II)

Solved by: 1546

Success rate: 56.72%

Arrange the Numbers

Success rate: 50.87%

Solved by: 1085

Success rate: 60.18%

Again Array Queries

Success rate: 40.91%

Problem Makes Problem

Solved by: 1204

Success rate: 49.29%

Birthday Paradox

Success rate: 49.82%

Solved by: 4097

Success rate: 77.77%

Solved by: 5060

Success rate: 38.72%

Success rate: 53.87%

Cricket Ranking

Success rate: 42.09%

Trailing Zeroes (III)

Solved by: 2764

Success rate: 53.70%

How Many Zeroes?

Solved by: 1126

Success rate: 71.79%

Success rate: 36.49%

Solved by: 1265

Success rate: 52.86%

Snakes and Ladders

Success rate: 61.56%

Success rate: 49.78%

Success rate: 52.66%

Counting Perfect BST

Success rate: 36.59%

The Vindictive Coach

Success rate: 52.14%

Josephus Problem

Success rate: 72.24%

Solved by: 1136

Success rate: 31.90%

Fantasy of a Summation

Success rate: 63.99%

Solved by: 4320

Success rate: 51.56%

Solved by: 1431

Success rate: 38.31%

Mysterious Bacteria

Success rate: 28.52%

One Unit Machine

Success rate: 70.06%

Harmonic Number

Solved by: 1123

Success rate: 45.81%

Pairs Forming LCM

Success rate: 41.33%

Harmonic Number (II)

Success rate: 73.13%

Success rate: 39.25%

Success rate: 77.66%