Compilare: main.cpp: In function 'int bellman_ford(int)': main.cpp:35:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i< l[nod1].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp:19:12: warning: unused variable 'p' [-Wunused-variable] int i, p, u, nod2, ok = 1, nod1, c; ^ main.cpp:19:15: warning: unused variable 'u' [-Wunused-variable] int i, p, u, nod2, ok = 1, nod1, c; ^ main.cpp:19:24: warning: unused variable 'ok' [-Wunused-variable] int i, p, u, nod2, ok = 1, nod1, c; ^~