Eroare de compilare: user.cpp:5: error: expected initializer before 'bool' user.cpp: In function 'void declara()': user.cpp:9: error: 's' was not declared in this scope user.cpp: In function 'void citeste()': user.cpp:14: error: 'f' was not declared in this scope user.cpp:14: error: 'x' was not declared in this scope user.cpp:14: error: 'n' was not declared in this scope user.cpp:15: error: 'i' was not declared in this scope user.cpp:16: error: 'li' was not declared in this scope user.cpp:18: error: 'co' was not declared in this scope user.cpp: In function 'void back(int)': user.cpp:25: error: 'n' was not declared in this scope user.cpp:26: error: 'li' was not declared in this scope user.cpp:32: error: 'co' was not declared in this scope user.cpp:38: error: 's' was not declared in this scope user.cpp:38: error: 'n' was not declared in this scope user.cpp:39: error: 'check' was not declared in this scope user.cpp:40: error: 'valid' was not declared in this scope user.cpp:42: error: 't' was not declared in this scope user.cpp:44: error: 'j' was not declared in this scope user.cpp:46: error: 'chk' was not declared in this scope user.cpp:47: error: 'm' was not declared in this scope user.cpp:51: error: 'j' was not declared in this scope user.cpp:53: error: 'chk' was not declared in this scope user.cpp:54: error: 'm' was not declared in this scope user.cpp:61: error: a function-definition is not allowed here before '{' token user.cpp:66: error: expected `}' at end of input