View Compilation Error

0_0_21375323_17919.cpp: In function 'int main()':
0_0_21375323_17919.cpp:13:17: error: 'x' was not declared in this scope
         cin>>n>>x>>y;
                 ^
0_0_21375323_17919.cpp:13:20: error: 'y' was not declared in this scope
         cin>>n>>x>>y;
                    ^