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View Compilation Error

0_0_8308403_22530.cpp: In member function `int UFSet<MAX>::Root(int)':
0_0_8308403_22530.cpp:13: error: `a' undeclared (first use this function)
0_0_8308403_22530.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)


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