Compilare: user.cpp: In function ‘int main()’: user.cpp:31:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(put >= (1 << 31)) ^ user.cpp:32:36: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘unsigned int’ [-Wformat=] printf("%lld\n", nr + 1); ^ user.cpp:11:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbiti.out", "w", stdout); ^