Compilare: user.cpp: In function ‘void Solve()’: user.cpp:66:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < events.size(); ++i) ^ user.cpp: In function ‘void Read()’: user.cpp:51:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:56:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &x, &y, &d); ^ user.cpp: In function ‘int main()’: user.cpp:90:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drept3.in", "r", stdin); ^ user.cpp:91:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drept3.out", "w", stdout); ^