Compilare: main.cpp: In function 'bool check()': main.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<componente.size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:64:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<componente[i].size();j++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:66:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=j+1;k<componente[i].size();k++) ~^~~~~~~~~~~~~~~~~~~~~