Compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:24:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < a[tata].size(); ++i) { ^ user.cpp: In function ‘int main()’: user.cpp:62:27: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%ld",&cost[i]); ^ user.cpp:75:28: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%ld\n",getMax()); ^