0_0_20686568_1895.cpp: In function 'int main()': 0_0_20686568_1895.cpp:5:2: error: '_int64' was not declared in this scope _int64 fabb[100]; ^ 0_0_20686568_1895.cpp:7:2: error: 'fabb' was not declared in this scope fabb[0]=1; ^