Compilare: main.cpp: In function 'int exista_drum_crestere()': main.cpp:45:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for (int i = 0; i< graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:129:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for (i = 0; i< drumuri_minime.size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:93:11: warning: unused variable 'j' [-Wunused-variable] 93 | int i,j, t1, t2; | ^