Compilare: main.cpp: In function 'int main()': main.cpp:99:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for(int k=3;k<a.size();k++) | ~^~~~~~~~~ main.cpp:114:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | for(int k=3;k<b.size();k++) | ~^~~~~~~~~ main.cpp:130:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 130 | for(int k=1;k<a.size()-1;k++) | ~^~~~~~~~~~~ main.cpp:139:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<points>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for(int k=1;k<convex2.size()-1;k++) | ~^~~~~~~~~~~~~~~~~