0_0_1555546_28289.cpp: In function `int DFS(int, int)':
0_0_1555546_28289.cpp:19: error: call of overloaded `abs(int)' is ambiguous
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/cmath:89: note: candidates are: double std::abs(double)
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/cmath:93: note: float std::abs(float)
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/cmath:97: note: long double std::abs(long double)
0_0_1555546_28289.cpp:19: error: call of overloaded `abs(int)' is ambiguous
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/cmath:89: note: candidates are: double std::abs(double)
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/cmath:93: note: float std::abs(float)
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/c++/3.4.2/cmath:97: note: long double std::abs(long double)
0_0_1555546_28289.cpp:51: error: `m' undeclared (first use this function)
0_0_1555546_28289.cpp:51: error: (Each undeclared identifier is reported only once for each function it appears in.)
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