0_0_29305913_8543.cpp: In function 'int main()': 0_0_29305913_8543.cpp:7:5: error: '_int64' was not declared in this scope _int64 ar[64]; ^ 0_0_29305913_8543.cpp:10:9: error: 'ar' was not declared in this scope ar[0] = 3; ^