Compilare: main.cpp: In function 'void dfs(int)': main.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[n].size(); i++) ~^~~~~~~~~~~~ main.cpp: In function 'void dfs_t(int)': main.cpp:36:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<t[n].size(); i++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:80:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<compcon[i].size(); j++) ~^~~~~~~~~~~~~~~~~~