View Compilation Error

0_0_31789978_18371.cpp: In function 'int main()':
0_0_31789978_18371.cpp:41:15: error: 'struct node' has no member named 'x'
             e.x=x[i]; e.y=y[j];
               ^
0_0_31789978_18371.cpp:41:25: error: 'struct node' has no member named 'y'
             e.x=x[i]; e.y=y[j];
                         ^
0_0_31789978_18371.cpp:57:19: error: 'struct node' has no member named 'x'
                 e.x=x[i];
                   ^
0_0_31789978_18371.cpp:58:19: error: 'struct node' has no member named 'y'
                 e.y=y[j];
                   ^