Compilare: user.cpp: In function ‘int main()’: user.cpp:80:34: warning: format ‘%u’ expects argument of type ‘unsigned int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] while ( scanf("%d%ulld",&p,&q) == 2 ) { ^ user.cpp:71:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ppal.in","r",stdin); ^ user.cpp:72:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ppal.out","w",stdout); ^ user.cpp:74:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%s\n",&n,s+1); ^