Eroare de compilare: main.cpp:2:1: error: 'ifstream' does not name a type ifstream cin("deque.in"); ^~~~~~~~ main.cpp:3:1: error: 'ofstream' does not name a type ofstream cout("deque.out"); ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:9:5: error: 'cin' was not declared in this scope cin>>n>>k; ^~~ main.cpp:22:5: error: 'cout' was not declared in this scope cout<<sum; ^~~~ Non zero exit status: 1