0_0_5229235_6907.cpp: In member function `void point::read()':
0_0_5229235_6907.cpp:17: error: `scanf' undeclared (first use this function)
0_0_5229235_6907.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_5229235_6907.cpp: In function `double dist(point, point)':
0_0_5229235_6907.cpp:24: error: `pow' undeclared (first use this function)
0_0_5229235_6907.cpp:24: error: `sqrt' undeclared (first use this function)
0_0_5229235_6907.cpp: In function `bool isOnSegment(point, point, point)':
0_0_5229235_6907.cpp:32: error: `fabs' undeclared (first use this function)
0_0_5229235_6907.cpp: In function `double distPtoL(point, point, point)':
0_0_5229235_6907.cpp:38: error: `min' undeclared (first use this function)
0_0_5229235_6907.cpp:39: error: `fabs' undeclared (first use this function)
0_0_5229235_6907.cpp: In function `point goLen(point, point, double)':
0_0_5229235_6907.cpp:45: error: `sqrt' undeclared (first use this function)
0_0_5229235_6907.cpp: In function `point change(point, point, point, double)':
0_0_5229235_6907.cpp:56: error: `sqrt' undeclared (first use this function)
0_0_5229235_6907.cpp: In function `point get_point(point, point, point)':
0_0_5229235_6907.cpp:68: error: `fabs' undeclared (first use this function)
0_0_5229235_6907.cpp: In member function `bool poly::inPoly(point)':
0_0_5229235_6907.cpp:101: error: `maxx' undeclared (first use this function)
0_0_5229235_6907.cpp: In member function `bool poly::canHold(double)':
0_0_5229235_6907.cpp:141: error: `swap' undeclared (first use this function)
0_0_5229235_6907.cpp:142: error: `sqrt' undeclared (first use this function)
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