Compilare: main.cpp: In function 'int main()': main.cpp:26:33: warning: integer overflow in expression [-Woverflow] long long st=1,dr=10000*1000*10000; ~~~~~~~~~~^~~~~~ main.cpp:20:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("checkin.in","r",stdin); ^ main.cpp:21:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("checkin.out","w",stdout); ^