Compilare: user.cpp: In function ‘int main()’: user.cpp:202:34: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘ll {aka long long int}’ [-Wformat=] if(ok) printf("%d\n", ans); ^ user.cpp:134:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("queries.out", "w", stdout); ^