Compilare: user.cpp: In member function ‘bool Nod::operator<(const Nod&) const’: user.cpp:32:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] return Dist(D[nod][t].d1, D[nod][t].d2) > Dist(D[ot.nod][ot.t].d1, D[ot.nod][ot.t].d2); ^ user.cpp:32:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] return Dist(D[nod][t].d1, D[nod][t].d2) > Dist(D[ot.nod][ot.t].d1, D[ot.nod][ot.t].d2); ^ user.cpp:32:70: warning: array subscript has type ‘char’ [-Wchar-subscripts] return Dist(D[nod][t].d1, D[nod][t].d2) > Dist(D[ot.nod][ot.t].d1, D[ot.nod][ot.t].d2); ^ user.cpp:32:90: warning: array subscript has type ‘char’ [-Wchar-subscripts] return Dist(D[nod][t].d1, D[nod][t].d2) > Dist(D[ot.nod][ot.t].d1, D[ot.nod][ot.t].d2); ^ user.cpp: In function ‘void BF(int, char)’: user.cpp:61:36: warning: unused variable ‘dist’ [-Wunused-variable] int adj = e.first, dist = e.second; ^~~~ user.cpp: In function ‘int main()’: user.cpp:122:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &k); ^ user.cpp:126:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:130:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &vmax, &lim); ^ user.cpp:137:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &u, &v, &len); ^