Compilare: user.cpp: In function ‘int main()’: user.cpp:52:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < v[nod].size(); j++) ~~^~~~~~~~~~~~~~~ user.cpp:70:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=1; i<= m; i++) ^~~ user.cpp:74:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ if (contor) { ^~