View Compilation Error

0_0_21181424_6167.cpp: In function 'int query(int, int)':
0_0_21181424_6167.cpp:37:11: error: 't' was not declared in this scope
     int r=t[i].r, l=t[i].l, mid=(r+l)/2;
           ^
0_0_21181424_6167.cpp:38:11: error: 'l' was not declared in this scope
     if(r==l)
           ^
0_0_21181424_6167.cpp:42:12: error: 'mid' was not declared in this scope
     if(la<=mid)
            ^