Compilare: main.cpp: In function 'void afisare()': main.cpp:27:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < b.size(); ++i) ~~^~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:50:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); ++i) ~~^~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> calculeaza()': main.cpp:79:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < ciclu[poz[i]].size(); ++j) ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void rezolvare()': main.cpp:90:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < b.size(); ++i) ~~^~~~~~~~~~