Compilare: user.cpp: In function ‘int main()’: user.cpp:38:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j< Rez[i].size(); ++j) ^ user.cpp: In function ‘void DFS1(int)’: user.cpp:61:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i< A[k].size(); ++i) ^ user.cpp: In function ‘void DFST(int)’: user.cpp:71:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i< At[k].size(); ++i){ ^