Eroare de compilare: user.cpp:3:17: error: ctype: No such file or directory user.cpp:4:18: error: stdlib: No such file or directory user.cpp:111:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:14: error: 'ifstream' was not declared in this scope user.cpp:14: error: expected `;' before 'in' user.cpp:15: error: 'in' was not declared in this scope user.cpp:19: warning: comparison between signed and unsigned integer expressions user.cpp:25: warning: null argument where non-null required (argument 2) user.cpp:25: warning: null argument where non-null required (argument 2) user.cpp:40: warning: null argument where non-null required (argument 2) user.cpp:40: warning: null argument where non-null required (argument 2) user.cpp:64: warning: null argument where non-null required (argument 2) user.cpp:64: warning: null argument where non-null required (argument 2) user.cpp:78: error: 'ofstream' was not declared in this scope user.cpp:78: error: expected `;' before 'out' user.cpp:79: error: 'out' was not declared in this scope user.cpp:79: error: 'endl' was not declared in this scope