Borderou de evaluare (job #391137)

Eroare de compilare: user.cpp:99:13: error: redefinition of ‘std::ifstream in’ user.cpp:5:10: error: ‘std::ifstream in’ previously declared here user.cpp:100:14: 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:103:5: error: redefinition of ‘int main()’ user.cpp:9:5: error: ‘int main()’ previously defined here user.cpp:117:9: error: ‘j’ was not declared in this scope user.cpp:123:9: error: ‘nrc’ was not declared in this scope user.cpp:105:41: warning: unused variable ‘y1’ [-Wunused-variable]