View Compilation Error

0_0_24829579_13972.cpp: In function 'long long int China(int, long long int*, long long int*)':
0_0_24829579_13972.cpp:55:16: error: '_int128' was not declared in this scope
         x=(x+((_int128)y*((_int128)w*(_int128)a[i])%M)%M)%M;
                ^
0_0_24829579_13972.cpp:55:24: error: expected ')' before 'y'
         x=(x+((_int128)y*((_int128)w*(_int128)a[i])%M)%M)%M;
                        ^
0_0_24829579_13972.cpp:55:60: error: expected ')' before ';' token
         x=(x+((_int128)y*((_int128)w*(_int128)a[i])%M)%M)%M;
                                                            ^