Compilare: user.cpp: In function ‘int bdg(int)’: user.cpp:90:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < V[a.nod].size(); ++ i) ^ user.cpp:105:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = Time[a.nod] + 1; i < T[C[a.nod]].size(); ++ i) ^ user.cpp: In function ‘void solve()’: user.cpp:146:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < T[i].size(); ++ j) ^ user.cpp: In function ‘void read()’: user.cpp:35:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &m, &B); ^ user.cpp:39:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d", &a, &b, &c, &p, &s); ^