38 lines
405 B
C#
38 lines
405 B
C#
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using System;
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class MainClass
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{
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public static int Main ()
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{
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var res = XX () | YY();
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if (!res.Value)
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return 1;
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if (xx != 1)
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return 2;
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if (yy != 1)
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return 2;
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return 0;
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}
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static int xx;
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static bool XX ()
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{
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++xx;
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Console.WriteLine ("XX");
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return true;
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}
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static int yy;
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static bool? YY ()
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{
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if (xx == 1)
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++yy;
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Console.WriteLine ("YY");
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return true;
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}
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}
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