28 lines
269 B
C#
28 lines
269 B
C#
using System;
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class X
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{
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static int Test (int? a)
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{
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switch (a) {
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case 0:
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return 0;
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case 1:
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return 1;
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default:
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return -1;
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}
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}
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public static int Main ()
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{
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if (Test (null) != -1)
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return 1;
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if (Test (0) != 0)
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return 2;
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return 0;
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}
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}
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