View Compilation Error

0_0_14848513_24745.cpp: In function 'int main()':
0_0_14848513_24745.cpp:5:2: error: '_int64' was not declared in this scope
  _int64 m[100];
  ^
0_0_14848513_24745.cpp:16:4: error: 'm' was not declared in this scope
    m[a]=1,m[a+1]=2;
    ^