View Compilation Error

0_0_14209977_8837.cpp: In function 'int main()':
0_0_14209977_8837.cpp:4:5: error: '_int64' was not declared in this scope
     _int64 n[50];
     ^
0_0_14209977_8837.cpp:7:5: error: 'n' was not declared in this scope
     n[0]=1;
     ^