Compilare: user.cpp: In function ‘void Dijkstra(int)’: user.cpp:64:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i< la[u].size(); i++) ~^~~~~~~~~~~~~~ user.cpp:71:16: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if( min_heap.find( {d[v], v} ) != min_heap.end() ) ^~ user.cpp:74:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ d[v] = d[u] + w_uv; ^