View Compilation Error

0_0_27867129_23218.cpp: In function 'bool search(long long int)':
0_0_27867129_23218.cpp:27:19: error: 't' was not declared in this scope
     int L = 0,R = t-1;
                   ^
0_0_27867129_23218.cpp:30:12: error: 'd' was not declared in this scope
         if(d[M]>x) R = M-1;
            ^