Compilare: user.cpp: In function ‘double get_area(std::vector<Point>, Point)’: user.cpp:32:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i + 1 < polygon.size(); i++ ){ ^ user.cpp: In function ‘Point get_splitPoint(std::vector<Point>, Point)’: user.cpp:42:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i < polygon.size(); i++ ){ ^ user.cpp:50:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0; i + 1 < polygon.size(); i++ ){ ^ user.cpp:58:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( L == polygon.size() ) ^ user.cpp:61:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( R == polygon.size() ) ^ user.cpp:68:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( L == polygon.size() ) ^ user.cpp:70:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( R == polygon.size() ) ^ user.cpp: In function ‘int main()’: user.cpp:109:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i == v.size() ) ^ user.cpp:113:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i == v.size() ) ^ user.cpp:121:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i == v.size() ) ^ user.cpp:125:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i == v.size() ) ^