View Compilation Error

0_0_25280978_5864.cpp: In function 'int main()':
0_0_25280978_5864.cpp:33:69: error: 'y41' was not declared in this scope
     if(x3>=0&&x3<=200 && y3>=0&&y3<=200 && x4>=0&&x4<=200 && y4>=0&&y41<=200 &&vis[x3][y3] && vis[x4][y4])
                                                                     ^
0_0_25280978_5864.cpp:39:69: error: 'y41' was not declared in this scope
     if(x3>=0&&x3<=200 && y3>=0&&y3<=200 && x4>=0&&x4<=200 && y4>=0&&y41<=200 &&vis[x3][y3] && vis[x4][y4])
                                                                     ^