Compilare: user.cpp: In function ‘int main()’: user.cpp:7:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] { freopen("teatru.in", "r",stdin); ^ user.cpp:8:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.out", "w",stdout); ^ user.cpp:11:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n", &n, &cc); ^ user.cpp:49:5: warning: ‘dr’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=stt; i<=dr; i++) ^ user.cpp:49:5: warning: ‘stt’ may be used uninitialized in this function [-Wmaybe-uninitialized]