Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:45:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ind < q[pasi].size()) { ^ user.cpp:58:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[ct.x].size(); ++i) { ^ user.cpp:63:61: warning: narrowing conversion of ‘dist[nodc]’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q[dist[nodc]].push_back({nodc, dist[nodc]}); ^ user.cpp:68:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ind == q[pasi].size()) { ^ user.cpp: In function ‘int main()’: user.cpp:77:10: warning: unused variable ‘c’ [-Wunused-variable] char c; ^