View Compilation Error

0_0_33754723_17026.cpp: In function 'int main()':
0_0_33754723_17026.cpp:118:18: error: 'x' was not declared in this scope
             link(x,y);
                  ^
0_0_33754723_17026.cpp:118:20: error: 'y' was not declared in this scope
             link(x,y);
                    ^