Compilare: user.cpp: In function ‘void dijkstra(int)’: user.cpp:58:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < C[node].size(); ++i) ^ user.cpp:38:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, mini, k, ok; ^ user.cpp:38:15: warning: unused variable ‘mini’ [-Wunused-variable] int i, j, mini, k, ok; ^ user.cpp:38:21: warning: unused variable ‘k’ [-Wunused-variable] int i, j, mini, k, ok; ^ user.cpp:38:24: warning: unused variable ‘ok’ [-Wunused-variable] int i, j, mini, k, ok; ^