Compilare: main.cpp: In function 'int main()': main.cpp:101:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 101 | for(int k=3;k<a.size();k++) | ~^~~~~~~~~ main.cpp:116:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(int k=3;k<b.size();k++) | ~^~~~~~~~~ main.cpp:132:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 132 | for(int k=1;k<a.size()-1;k++) | ~^~~~~~~~~~~ main.cpp:141:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for(int k=1;k<convex2.size()-1;k++) | ~^~~~~~~~~~~~~~~~~