Eroare de compilare: main.cpp: In function 'int main()': main.cpp:41:9: error: 'len' was not declared in this scope len = 0; ^~~ main.cpp:47:19: error: 'answer' was not declared in this scope ++answer; ^~~~~~ main.cpp:56:19: error: 'answer' was not declared in this scope ++answer; ^~~~~~ main.cpp:58:17: error: 'answer' was not declared in this scope fout << answer << "\n"; ^~~~~~ Non zero exit status: 1