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20 lines
459 B
C#
20 lines
459 B
C#
using System.Collections.Generic;
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using System.Linq;
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public class Kata {
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public static IEnumerable<int> KeyToCiphers(int key) =>
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key.ToString().Select(
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c => c - '0'
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);
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public static string Decode(int[] code, int key) {
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var ciphers = KeyToCiphers(key);
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var result = "";
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for (var i = 0; i < code.Length; i++) {
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result += (char) ('a' - 1 + code[i] - ciphers.ElementAt(i % ciphers.Count()));
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}
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return result;
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}
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}
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