Compilare: user.cpp: In function ‘void add(Circle)’: user.cpp:47:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < lines.size(); j++) ~~^~~~~~~~~~~~~~ user.cpp:52:29: warning: narrowing conversion of ‘circle.Circle::x’ from ‘double’ to ‘int’ inside { } [-Wnarrowing] lines.push_back({circle.x, circle.y, {getIntersection(circle)}}); ~~~~~~~^ user.cpp:52:39: warning: narrowing conversion of ‘circle.Circle::y’ from ‘double’ to ‘int’ inside { } [-Wnarrowing] lines.push_back({circle.x, circle.y, {getIntersection(circle)}}); ~~~~~~~^ user.cpp: In function ‘void greedy(Line)’: user.cpp:61:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < line.intPoints.size(); i++) ~~^~~~~~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:84:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < lines.size(); i++) ~~^~~~~~~~~~~~~~