Balanced brackets: Difference between revisions
Content added Content deleted
(Added C#.) |
m (→{{header|Ruby}}: String#<< is probably not better than String#+.) |
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s = "[]" * i |
s = "[]" * i |
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# |
# There is no String#shuffle! method. |
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# This is a Knuth shuffle. |
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(s.length - 1).downto(1) do |a, b| |
(s.length - 1).downto(1) do |a, b| |
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b = rand(a + 1) |
b = rand(a + 1) |
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end |
end |
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puts((s =~ re ? " OK: " : "bad: ") |
puts((s =~ re ? " OK: " : "bad: ") + s) |
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end |
end |
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["[[]", "[]]", "[letters]"].each do |s| |
["[[]", "[]]", "[letters]"].each do |s| |
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puts((s =~ re ? " OK: " : "bad: ") |
puts((s =~ re ? " OK: " : "bad: ") + s) |
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end</lang> |
end</lang> |
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OK: [] |
OK: [] |
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bad: ][][ |
bad: ][][ |
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bad: |
bad: ][][][ |
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bad: ]] |
bad: ]]][[[][ |
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bad: |
bad: ][]][][][[ |
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bad: ][][]]][[[ |
bad: ][[][]]]][[[ |
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bad: ]][][[[]]][][[ |
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OK: [][[][][[][]]][] |
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OK: [[[[[]]][[][]]][]] |
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bad: [[] |
bad: [[] |
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bad: []] |
bad: []] |
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