Compilare: user.cpp: In function ‘int main()’: user.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=N; i++) ^ user.cpp:40:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<=N; i++) ^ user.cpp:21:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("furnicik.in", "r", stdin); ^ user.cpp:22:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("furnicik.out", "w", stdout); ^ user.cpp:23:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d %d", &N, &L, &T); ^ user.cpp:26:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &poz, &tip); ^