0_0_4716813_7462.cpp: In function `int intersect(Circle, Circle, Point&, Point&)':
0_0_4716813_7462.cpp:115: error: `my_sqrt' undeclared (first use this function)
0_0_4716813_7462.cpp:115: error: (Each undeclared identifier is reported only once for each function it appears in.)
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