View Compilation Error

0_0_39200091_7954.cpp: In function 'int main()':
0_0_39200091_7954.cpp:7:9: error: expected initializer before 'double'
    7 |         double x,y,z;
      |         ^~~~~~
0_0_39200091_7954.cpp:8:16: error: 'n' was not declared in this scope
    8 |         cin >> n;
      |                ^
0_0_39200091_7954.cpp:10:24: error: 'x' was not declared in this scope
   10 |                 cin >> x >> y >> z;
      |                        ^
0_0_39200091_7954.cpp:10:29: error: 'y' was not declared in this scope
   10 |                 cin >> x >> y >> z;
      |                             ^
0_0_39200091_7954.cpp:10:34: error: 'z' was not declared in this scope
   10 |                 cin >> x >> y >> z;
      |                                  ^