View Compilation Error

0_0_15455431_6524.cpp: In function 'bool work()':
0_0_15455431_6524.cpp:36:67: error: 'y2' was not declared in this scope
     double k1 = sqrt(2.0+sqrt(2.0)),k2 = sqrt(5.0+sqrt(22.0)),k = y2/y1;
                                                                   ^
0_0_15455431_6524.cpp:36:70: error: 'y1' was not declared in this scope
     double k1 = sqrt(2.0+sqrt(2.0)),k2 = sqrt(5.0+sqrt(22.0)),k = y2/y1;
                                                                      ^