Eroare de compilare: user.cpp: In function ‘void olvas(int&, int*)’: user.cpp:4: error: ‘fopen’ was not declared in this scope user.cpp:5: error: ‘fscanf’ was not declared in this scope user.cpp:7: error: ‘fclose’ was not declared in this scope user.cpp: In function ‘void kiir(int, int)’: user.cpp:27: error: ‘fopen’ was not declared in this scope user.cpp:28: error: ‘fprintf’ was not declared in this scope user.cpp:29: error: ‘printf’ was not declared in this scope user.cpp:30: error: ‘fclose’ was not declared in this scope user.cpp: At global scope: user.cpp:33: error: ‘::main’ must return ‘int’ user.cpp: In function ‘int main()’: user.cpp:34: warning: unused variable ‘p’ user.cpp:34: warning: unused variable ‘q’