List questions from inclusion-exclusion

Published on 09 Aug 2020 - 15:56

374

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An alternate solution to the hat-matching problem, probability of exactly $k$ matches

Published on 23 Feb 2026 - 20:42

532

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The hat-matching problem, probability of at least $k$ matches

Published on 11 Aug 2020 - 9:07

221

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Questions relating to inclusion-exclusion principle

Published on 16 Aug 2020 - 16:44

123

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Number of combinations for which $x_1+x_2+x_3=100$ if for every $3\ge i\ge 1$, $x_i$ is a non negative integer with $40\ge x_i$

Published on 30 Mar 2026 - 7:42

426

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Quadrilateral inside a polygon having no common side,different approach.

Published on 30 Mar 2026 - 9:41

53

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Applying boundary conditions to counting combinatorial question

Published on 01 Apr 2026 - 3:25

179

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question relating to the Euler's totient function

Published on 31 Mar 2026 - 20:22

281

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How to identify problems that need inclusion - exclusion principle

Published on 26 Aug 2020 - 19:20

202

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Inclusion-Exclusion Problem with equation

Published on 26 Aug 2020 - 20:27

111

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Counting solutions to $x_1 + x_2 + x_3 + x_4 = 12$ with at least one $x_i\ge 5$.

Published on 01 Apr 2026 - 3:26

77

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$x_1 + x_2 + x_3 + ... + x_6 =20$ while $0\le x_i\le8$

Published on 29 Aug 2020 - 9:49

62

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Inclusion / exclusion principle theorem form

Published on 01 Sep 2020 - 16:48

390

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Simple String of 6-digits

Published on 28 Mar 2026 - 2:02

32

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Sets by Inclusion Clarification

Published on 05 Sep 2020 - 22:11

List Question

An alternate solution to the hat matching problem, probability of exactly k matches

An alternate solution to the hat-matching problem, probability of exactly $k$ matches

The hat-matching problem, probability of at least $k$ matches

Questions relating to inclusion-exclusion principle

Number of combinations for which $x_1+x_2+x_3=100$ if for every $3\ge i\ge 1$, $x_i$ is a non negative integer with $40\ge x_i$

Quadrilateral inside a polygon having no common side,different approach.

Applying boundary conditions to counting combinatorial question

question relating to the Euler's totient function

How to identify problems that need inclusion - exclusion principle

Inclusion-Exclusion Problem with equation

Counting solutions to $x_1 + x_2 + x_3 + x_4 = 12$ with at least one $x_i\ge 5$.

$x_1 + x_2 + x_3 + ... + x_6 =20$ while $0\le x_i\le8$

Inclusion / exclusion principle theorem form

Simple String of 6-digits

Sets by Inclusion Clarification

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