View Compilation Error

0_0_39305147_21300.cpp: In function 'int main()':
0_0_39305147_21300.cpp:15:9: error: '_int64' was not declared in this scope
   15 |         _int64 Catalan[36][36];
      |         ^~~~~~
0_0_39305147_21300.cpp:22:33: error: 'Catalan' was not declared in this scope; did you mean 'atan'?
   22 |                                 Catalan[i][j] = 1;
      |                                 ^~~~~~~
      |                                 atan
0_0_39305147_21300.cpp:26:33: error: 'Catalan' was not declared in this scope; did you mean 'atan'?
   26 |                                 Catalan[i][j] = Catalan[i][j - 1];
      |                                 ^~~~~~~
      |                                 atan
0_0_39305147_21300.cpp:30:33: error: 'Catalan' was not declared in this scope; did you mean 'atan'?
   30 |                                 Catalan[i][j] = Catalan[i - 1][j] + Catalan[i][j - 1];
      |                                 ^~~~~~~
      |                                 atan
0_0_39305147_21300.cpp:40:59: error: 'Catalan' was not declared in this scope; did you mean 'atan'?
   40 |                 cout << count++ << " " << n << " " << 2 * Catalan[n][n] << endl;
      |                                                           ^~~~~~~
      |                                                           atan