View Compilation Error

0_0_29965024_10296.cpp:40:1: error: '_int128' does not name a type
 _int128 qwe(_int128 x, _int128 y) {
 ^
0_0_29965024_10296.cpp: In function 'int main()':
0_0_29965024_10296.cpp:56:3: error: '_int128' was not declared in this scope
   _int128 ans = p - 1;
   ^
0_0_29965024_10296.cpp:59:14: error: 'ans' was not declared in this scope
     LL ANS = ans;
              ^
0_0_29965024_10296.cpp:64:5: error: 'ans' was not declared in this scope
     ans = ans * qwe(i, p - 2) % p;
     ^
0_0_29965024_10296.cpp:64:29: error: 'qwe' was not declared in this scope
     ans = ans * qwe(i, p - 2) % p;
                             ^