View Compilation Error

0_0_24581114_21278.cpp: In function 'int main()':
0_0_24581114_21278.cpp:54:17: error: 'T' was not declared in this scope
                 T.update(z,y);
                 ^
0_0_24581114_21278.cpp:58:31: error: 'T' was not declared in this scope
                 printf("%d\n",T.query(y,z));
                               ^