Compilare: main.cpp: In function 'void djk(int)': main.cpp:35:24: warning: loop variable 'pair' creates a copy from type 'const std::pair<int, int>' [-Wrange-loop-construct] 35 | for(const auto pair: L[nod_curent]){ | ^~~~ main.cpp:35:24: note: use reference type to prevent copying 35 | for(const auto pair: L[nod_curent]){ | ^~~~ | & main.cpp: In function 'int main()': main.cpp:49:15: warning: unused variable 'nod_start' [-Wunused-variable] 49 | int N, M, nod_start, nod_dest; | ^~~~~~~~~ main.cpp:49:26: warning: unused variable 'nod_dest' [-Wunused-variable] 49 | int N, M, nod_start, nod_dest; | ^~~~~~~~