Compilare: main.cpp: In function 'void dfs(int)': main.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[nod].size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:36:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<vt[nod].size();j++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs3(int)': main.cpp:48:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<vctc[nod].size();j++) ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:80:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[i].size();j++) ~^~~~~~~~~~~~ main.cpp:91:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(gin[i]==0) ^~ main.cpp:94:12: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' for(int i=1;i<=nr;i++) ^~~