Question

How to maximize the number of connected components of a graph by removing an articulation point

score 867 · Answer 1 · 2026-03-27 23:23:32

867

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How to maximize the number of connected components of a graph by removing an articulation point

Published on 27 Mar 2026 - 23:23

score 634 · Answer 2 · 2026-03-26 01:12:12

634

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Disprove the following statement: For all real numbers $x$ and $y$, if $x + \lfloor x \rfloor = y + \lfloor y \rfloor$ then $x = y$.

Published on 26 Mar 2026 - 1:12

score 24 · Answer 3 · 2026-04-11 05:56:51

24

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Predicates and true statements

Published on 11 Apr 2026 - 5:56

score 58 · Answer 4 · 2018-10-05 02:51:27

58

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Derivative with constraint

Published on 05 Oct 2018 - 2:51

score 78 · Answer 5 · 2026-04-02 07:09:58

78

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How to prove these 6 functions to be continuous?

Published on 02 Apr 2026 - 7:09

score 73 · Answer 6 · 2026-03-25 15:50:23

73

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Showing a sub-sequence ($r_{n_{k}}$) converges to $x$

Published on 25 Mar 2026 - 15:50

score 1.9k · Answer 7 · 2026-03-25 10:56:04

1.9k

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How many numbers are there which only contain digits $4$ and $7$ in them?

Published on 25 Mar 2026 - 10:56

score 1.1k · Answer 8 · 2026-04-11 16:45:39

1.1k

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How to come up with a greedy solution and prove it?

Published on 11 Apr 2026 - 16:45

score 1k · Answer 9 · 2026-04-09 06:59:01

1k

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The ways of covering a $4\times 4$ square by $1\times 2$ colored dominoes

Published on 09 Apr 2026 - 6:59

score 44 · Answer 10 · 2018-10-06 00:14:50

44

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Validity or Invalidity

Published on 06 Oct 2018 - 0:14

score 1.6k · Answer 11 · 2026-03-26 01:27:01

1.6k

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Why is the algorithm for modular exponentiation by squaring considered as poly time?

Published on 26 Mar 2026 - 1:27

score 1k · Answer 12 · 2026-03-25 10:57:14

1k

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How to prove that for $n$ even and positive, the first player can guarantee a win?

Published on 25 Mar 2026 - 10:57

score 124 · Answer 13 · 2026-03-29 14:25:27

124

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What is $15^{15} + 16^{16} + 17^{17} + 18^{18} + 19^{19} + 20^{20} \pmod{7}$?

Published on 29 Mar 2026 - 14:25

score 104 · Answer 14 · 2026-04-10 22:10:31

104

Views

logical equivalence in predicate logic

Published on 10 Apr 2026 - 22:10

score 300 · Answer 15 · 2018-10-06 17:23:48

300

Views

Prove existence of infimum and supremum under a partial order

Published on 06 Oct 2018 - 17:23

List Question

How to maximize the number of connected components of a graph by removing an articulation point

Disprove the following statement: For all real numbers $x$ and $y$, if $x + \lfloor x \rfloor = y + \lfloor y \rfloor$ then $x = y$.

Predicates and true statements

Derivative with constraint

How to prove these 6 functions to be continuous?

Showing a sub-sequence ($r_{n_{k}}$) converges to $x$

How many numbers are there which only contain digits $4$ and $7$ in them?

How to come up with a greedy solution and prove it?

The ways of covering a $4\times 4$ square by $1\times 2$ colored dominoes

Validity or Invalidity

Why is the algorithm for modular exponentiation by squaring considered as poly time?

How to prove that for $n$ even and positive, the first player can guarantee a win?

What is $15^{15} + 16^{16} + 17^{17} + 18^{18} + 19^{19} + 20^{20} \pmod{7}$?

logical equivalence in predicate logic

Prove existence of infimum and supremum under a partial order

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