Compilare: main.cpp: In function 'int main()': main.cpp:78:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<vert.size();i++){ ~^~~~~~~~~~~~ main.cpp:89:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<oriz.size();i++){ ~^~~~~~~~~~~~ main.cpp:103:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<oriz.size();i++) ~^~~~~~~~~~~~ main.cpp:104:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=1;j<vert.size();j++) ~^~~~~~~~~~~~