Compilare: main.cpp: In function 'void afisare()': main.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int j=0;j<gr[i].size();j++) | ~^~~~~~~~~~~~~ main.cpp: In function 'void dijk(int)': main.cpp:62:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i=0;i<gr[prima.second].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~~~