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<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for (int i = 0; i< graf[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void update()': main.cpp:99:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for (i = 0; i < graf[ult_nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:131:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 131 | for (i = 0; i< drumuri_minime.size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:139:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for(i = 0; i< drumuri_minime.size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:141:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for (j = 0; j< drumuri_minime[i].size(); j++) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~