0_0_11538241_9894.cpp:10:25: bits/stdc++.h: No such file or directory
0_0_11538241_9894.cpp:15: error: `acos' was not declared in this scope
0_0_11538241_9894.cpp: In member function `void Point::read()':
0_0_11538241_9894.cpp:25: error: `scanf' undeclared (first use this function)
0_0_11538241_9894.cpp:25: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11538241_9894.cpp: In member function `void Point::print() const':
0_0_11538241_9894.cpp:27: error: `printf' undeclared (first use this function)
0_0_11538241_9894.cpp: In constructor `Line::Line(Point, Vector)':
0_0_11538241_9894.cpp:51: error: `atan2' undeclared (first use this function)
0_0_11538241_9894.cpp: In function `int HalfplaneIntersection(Line*, int, Point*)':
0_0_11538241_9894.cpp:72: error: `sort' undeclared (first use this function)
0_0_11538241_9894.cpp: In function `void init()':
0_0_11538241_9894.cpp:111: error: `scanf' undeclared (first use this function)
0_0_11538241_9894.cpp: In function `double f(double, double, double, double, double)':
0_0_11538241_9894.cpp:121: error: `pow' undeclared (first use this function)
0_0_11538241_9894.cpp: In function `int main()':
0_0_11538241_9894.cpp:189: error: `scanf' undeclared (first use this function)
0_0_11538241_9894.cpp:193: error: `printf' undeclared (first use this function)
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