mirror of
https://github.com/TheAlgorithms/Ruby
synced 2024-12-27 21:58:57 +01:00
53 lines
941 B
Ruby
53 lines
941 B
Ruby
# Convert a given decimal number into binary.
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#
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# Approach 1: Iterative
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#
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def decimal_to_binary(n)
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bin = []
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until n.zero?
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bin << n % 2
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n /= 2
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end
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bin.reverse.join
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end
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puts 'Binary value of 4 is ' + decimal_to_binary(4).to_s
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# Binary value of 4 is 100
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puts 'Binary value of 31 is ' + decimal_to_binary(31).to_s
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# Binary value of 31 is 11111
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puts 'Binary value of 64 is ' + decimal_to_binary(64).to_s
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# Binary value of 64 is 1000000
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#
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# Approach 2: Recursive
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#
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def decimal_to_binary(d)
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binary = (d % 2).to_s
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if d == 0
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return binary
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elsif d == 1
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return 1.to_s
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else
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binary += decimal_to_binary(d / 2).to_s
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end
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binary.to_i
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end
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puts 'Binary value of 4 is ' + decimal_to_binary(4).to_s
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# Binary value of 4 is 100
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puts 'Binary value of 31 is ' + decimal_to_binary(31).to_s
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# Binary value of 31 is 11111
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puts 'Binary value of 64 is ' + decimal_to_binary(64).to_s
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# Binary value of 64 is 1000000
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