Compilare: user.cpp: In function ‘void citire()’: user.cpp:31:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < nrMuchii; ++i) ^ user.cpp: In function ‘void functie(int)’: user.cpp:44:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < A[x].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:61:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= nrNoduri; ++i) ^ user.cpp:70:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= nrNoduri; ++i) ^ user.cpp:77:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= nrNoduri; ++i) ^