View Compilation Error

0_0_15259580_12678.cpp: In function 'int main()':
0_0_15259580_12678.cpp:12:34: error: 'Rinyear' was not declared in this scope
                 month = Rinyear(j);
                                  ^
0_0_15259580_12678.cpp:17:35: error: 'Frinyear' was not declared in this scope
                 month = Frinyear(j);
                                   ^
0_0_15259580_12678.cpp:23:32: error: 'Frinyear' was not declared in this scope
              month = Frinyear(j);
                                ^