Compilare: main.cpp: In member function 'void grafMare::citire_graf(std::istream&)': main.cpp:52:9: warning: unused variable 'cost' [-Wunused-variable] 52 | int cost = 0; | ^~~~ main.cpp: In member function 'bool grafMare::helsinki(std::vector<int>&)': main.cpp:318:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 318 | if(x>hel.size())//destule elem | ~^~~~~~~~~~~ main.cpp: In member function 'void grafMare::bellman(std::istream&, std::ofstream&)': main.cpp:531:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 531 | if(x==0) | ^