View Compilation Error

0_0_29679914_17478.cpp:1:10: error: 'n' was not declared in this scope
  int p = n / m;
          ^
0_0_29679914_17478.cpp:1:14: error: 'm' was not declared in this scope
  int p = n / m;
              ^
0_0_29679914_17478.cpp:2:17: error: 'm' was not declared in this scope
      int arr = (m * 2 + m * (m - 1)) / m;
                 ^
0_0_29679914_17478.cpp:2:25: error: 'm' was not declared in this scope
      int arr = (m * 2 + m * (m - 1)) / m;
                         ^
0_0_29679914_17478.cpp:2:30: error: 'm' was not declared in this scope
      int arr = (m * 2 + m * (m - 1)) / m;
                              ^
0_0_29679914_17478.cpp:2:40: error: 'm' was not declared in this scope
      int arr = (m * 2 + m * (m - 1)) / m;
                                        ^
0_0_29679914_17478.cpp:3:6: error: expected unqualified-id before 'if'
      if(n % m == 0) {
      ^