Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:15:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[k].size(); ++i) ^ user.cpp: In function ‘void DFS2(int)’: user.cpp:21:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[k].size(); ++i) ^ user.cpp: In function ‘void DF(int)’: user.cpp:39:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[k].size() && !ok; ++i) ^ user.cpp: In function ‘void updateC(int)’: user.cpp:62:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[k].size(); ++i) { // verific cu celelalte si le bag in multimea C ^ user.cpp: In function ‘void updateD(int)’: user.cpp:69:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<ctc[o].size(); ++i) { ^ user.cpp:72:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<v[k].size(); ++j) ^ user.cpp: In function ‘void cautaB(int)’: user.cpp:81:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<ctc[o].size(); ++i) { //cautam noduri din B ^ user.cpp: In function ‘int main()’: user.cpp:147:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<ctc[o].size(); ++j) ^ user.cpp:148:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (l=0; l<ctc[o].size(); ++l) { ^