Compilare: main.cpp: In function 'std::istream& operator>>(std::istream&, punct&)': main.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'std::ostream& operator<<(std::ostream&, const punct&)': main.cpp:40:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'ld aria(std::vector<punct>)': main.cpp:54:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<p.size(); i++) ~^~~~~~~~~ main.cpp: In function 'void hull(std::vector<punct>&)': main.cpp:67:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<p.size(); i++) ~^~~~~~~~~ main.cpp:74:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2; i<p.size(); i++) ~^~~~~~~~~ main.cpp: In function 'std::vector<punct> getPol(std::vector<punct>, std::vector<punct>)': main.cpp:143:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<p1.size(); i++) ~^~~~~~~~~~ main.cpp:144:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1; j<p2.size(); j++) ~^~~~~~~~~~ main.cpp: In function 'bool inPol(std::vector<punct>, punct)': main.cpp:160:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<p.size(); i++) ~^~~~~~~~~ main.cpp: In function 'void addPol(std::vector<punct>, std::vector<punct>, std::vector<punct>&)': main.cpp:168:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<p1.size(); i++) ~^~~~~~~~~~ main.cpp:171:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<p2.size(); i++) ~^~~~~~~~~~