sort 3 numbers while x, y, z is parameters.
c++\n\t\tint a = min(min(x, y), z);\n\t\tint c = max(max(x, y), z);\n\t\tint b = a ^ c ^ x ^ y ^ z;\n
```c++\n\t\tint a = min(min(x, y), z);\n\t\tint c = max(max(x, y), z);\n\t\tint b = a ^ c ^ x ^ y ^ z;\n```
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