View Compilation Error

0_0_15193527_6791.cpp: In function 'int main()':
0_0_15193527_6791.cpp:11:8: error: 'n' was not declared in this scope
 cin >> n;
        ^
0_0_15193527_6791.cpp:14:8: error: 'x' was not declared in this scope
 cin >> x >> y;
        ^
0_0_15193527_6791.cpp:14:13: error: 'y' was not declared in this scope
 cin >> x >> y;
             ^