Compilare: main.cpp: In function 'int main()': main.cpp:26:50: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'int' [-Wformat=] for (i=p+1;i<=n;i++) printf("%lld %lld\n",i,1); ^ main.cpp:11:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("galeti2.in","r",stdin); ^ main.cpp:12:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("galeti2.out","w",stdout); ^ main.cpp:13:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&n,&e); ^