View Compilation Error

0_0_21242430_32404.cpp:5:1: error: '_int64' does not name a type
 _int64 a[101];
 ^
0_0_21242430_32404.cpp: In function 'int main()':
0_0_21242430_32404.cpp:13:3: error: 'a' was not declared in this scope
   a[1] = 0;
   ^