Compilare: main.cpp: In function 'int main()': main.cpp:64:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for (int i = 0; i < graf[nodPrec].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:97:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for (int i = 0; i < graf[nodPrec].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~