0_0_37179718_26912.cpp: In function 'int main()': 0_0_37179718_26912.cpp:5:2: error: '_int64' was not declared in this scope _int64 arr[100]; ^ 0_0_37179718_26912.cpp:6:2: error: 'arr' was not declared in this scope arr[0] = 0; ^