Compilare: user.cpp: In function ‘int urm(int, int)’: user.cpp:17:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz_in_ciclu != Ciclu [ p_ciclu ] .size ( ) - 1 ) return Ciclu [p_ciclu] [poz_in_ciclu + 1]; ^ user.cpp: In function ‘int main()’: user.cpp:87:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int iii = 0; iii < frunze.size(); iii++) ^ user.cpp:98:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<v[*it].size(); j++) ^ user.cpp:48:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("telefon2.in", "r", stdin); ^ user.cpp:49:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("telefon2.out", "w", stdout); ^ user.cpp:50:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &n); ^ user.cpp:53:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &nxt[i]); ^