View Compilation Error

0_0_33320506_8042.cpp: In function 'int main()':
0_0_33320506_8042.cpp:73:11: error: '_int128' was not declared in this scope
           _int128 x=ans[i];x*=fac[i];
           ^
0_0_33320506_8042.cpp:73:28: error: 'x' was not declared in this scope
           _int128 x=ans[i];x*=fac[i];
                            ^