Borderou de evaluare (job #498546)

Eroare de compilare: user.cpp:2:1: error: 'ifstream' does not name a type user.cpp:3:1: error: 'ofstream' does not name a type user.cpp: In function 'void tipar()': user.cpp:31:9: error: 'cout' was not declared in this scope user.cpp:32:5: error: 'cout' was not declared in this scope user.cpp: In function 'void back()': user.cpp:40:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] user.cpp: In function 'int main()': user.cpp:56:5: error: 'cin' was not declared in this scope