Compilare: user.cpp: In function ‘void dffinal(int)’: user.cpp:19:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (c = 0; c < v[i].size(); c++) ^ user.cpp: In function ‘void dfsc(int)’: user.cpp:29:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (c = 0; c < vt[i].size(); c++) ^ user.cpp: In function ‘int main()’: user.cpp:64:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (n = 0; n < scc[c].size(); n++) // nodul din componenta ^