Eroare de compilare: main.cpp:1:1: error: 'include' does not name a type include <bits/stdc++.h> ^~~~~~~ main.cpp:5:1: error: 'ifstream' does not name a type ifstream f("regine.in"); ^~~~~~~~ main.cpp:6:1: error: 'ofstream' does not name a type ofstream g("regine.out"); ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:12:3: error: 'f' was not declared in this scope f>>n; ^ main.cpp:13:3: error: 'g' was not declared in this scope g<<(2*n+1)/3<<"\n"; ^ Non zero exit status: 1