Compilare: main.cpp: In function 'int exista_drum_crestere()': main.cpp:40:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 0; i< graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void update()': main.cpp:84:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | for (i = 0; i < graf[ult_nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:120:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for(i = 0; i< rez.size(); i++) | ~^~~~~~~~~~~~ main.cpp:93:11: warning: unused variable 'j' [-Wunused-variable] 93 | int i,j, t1, t2; | ^