Compilare: user.cpp: In function ‘void solve()’: user.cpp:225:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf ("/%d\n", num); ^ user.cpp: In function ‘void read()’: user.cpp:13:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d\n", &n, &m); ^ user.cpp:15:21: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets (s + 1); ^ user.cpp: In function ‘int main()’: user.cpp:231:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("boundingbox.in", "r", stdin); ^ user.cpp:232:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("boundingbox.out", "w", stdout); ^ user.cpp:234:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &T); ^ /tmp/ccg7endr.o: In function `read()': user.cpp:(.text+0x58): warning: the `gets' function is dangerous and should not be used.