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: 3369

Success rate: 44.45%

Mathematically Hard

Solved by: 2861

Success rate: 26.40%

Fibsieve's Fantabulous Birthday

Solved by: 5874

Success rate: 43.48%

Knights on a Chessboard

Solved by: 4903

Success rate: 29.14%

Solved by: 2759

Success rate: 31.32%

A Childhood Game

Solved by: 2301

Success rate: 49.51%

Solved by: 1257

Success rate: 42.08%

A Dangerous Maze

Solved by: 1758

Success rate: 70.58%

Trailing Zeroes (I)

Solved by: 2228

Success rate: 23.32%

Discovering Gold

Solved by: 1480

Success rate: 56.06%

Intelligent Factorial Factorization

Solved by: 2649

Success rate: 61.96%

Race to 1 Again

Solved by: 1269

Success rate: 67.66%

Digits of Factorial

Solved by: 4282

Success rate: 54.93%

Efficient Pseudo Code

Solved by: 1436

Success rate: 29.57%

Parallelogram Counting

Success rate: 36.38%

Solved by: 2305

Success rate: 39.64%

How Many Points?

Solved by: 1406

Success rate: 46.46%

Integer Divisibility

Solved by: 1993

Success rate: 52.52%

Just another Robbery

Success rate: 43.95%

Trailing Zeroes (II)

Solved by: 1521

Success rate: 56.70%

Arrange the Numbers

Success rate: 50.71%

Solved by: 1069

Success rate: 60.38%

Again Array Queries

Success rate: 41.19%

Problem Makes Problem

Solved by: 1144

Success rate: 49.20%

Birthday Paradox

Success rate: 50.26%

Solved by: 4037

Success rate: 77.59%

Solved by: 5006

Success rate: 38.65%

Success rate: 53.85%

Cricket Ranking

Success rate: 42.10%

Trailing Zeroes (III)

Solved by: 2717

Success rate: 53.53%

How Many Zeroes?

Solved by: 1119

Success rate: 71.76%

Success rate: 36.12%

Solved by: 1251

Success rate: 52.68%

Snakes and Ladders

Success rate: 61.46%

Success rate: 49.74%

Success rate: 52.65%

Counting Perfect BST

Success rate: 36.71%

The Vindictive Coach

Success rate: 52.55%

Josephus Problem

Success rate: 72.77%

Solved by: 1128

Success rate: 31.94%

Fantasy of a Summation

Success rate: 63.92%

Solved by: 4230

Success rate: 51.49%

Solved by: 1409

Success rate: 38.40%

Mysterious Bacteria

Success rate: 28.18%

One Unit Machine

Success rate: 70.04%

Harmonic Number

Solved by: 1118

Success rate: 45.78%

Pairs Forming LCM

Success rate: 41.47%

Harmonic Number (II)

Success rate: 73.06%

Success rate: 39.59%

Success rate: 78.46%