Compilare: user.cpp: In function ‘double treeSum()’: user.cpp:213:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<conexNodes.size(); i++) ^ user.cpp: In function ‘double horizontalDistance(point, point, point)’: user.cpp:68:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘double verticalDistance(point, point, point)’: user.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type] } ^