Compilare: user.cpp: In function ‘int main()’: user.cpp:45:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2002]’ [-Wformat=] scanf("%s", &S); ^ user.cpp:68:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos[a[j]].size() > m || pos[a[j]][m]->nr != pos[a[1]][m]->nr) ^