Borderou de evaluare (job #470296)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10:35: warning: unused variable ‘r’ [-Wunused-variable] user.cpp: At global scope: user.cpp:54:13: error: redefinition of ‘std::ifstream in’ user.cpp:5:10: error: ‘std::ifstream in’ previously declared here user.cpp:55:14: error: redefinition of ‘std::ofstream out’ user.cpp:6:10: error: ‘std::ofstream out’ previously declared here user.cpp: In function ‘int main()’: user.cpp:57:5: error: redefinition of ‘int main()’ user.cpp:8:5: error: ‘int main()’ previously defined here user.cpp:59:35: warning: unused variable ‘r’ [-Wunused-variable]