Compilare: user.cpp: In function ‘int main()’: user.cpp:43:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("coduri.in", "r", stdin); ^ user.cpp:44:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("coduri.out", "w", stdout); ^ user.cpp:47:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d\n", &n); ^ user.cpp:53:18: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets (st); ^ user.cpp:106:13: warning: ‘maxi’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (i > maxi) rez.push_back (0); ^ /tmp/ccgeQW7J.o: In function `main': user.cpp:(.text.startup+0xdb): warning: the `gets' function is dangerous and should not be used.