View Compilation Error

0_0_30217641_19971.cpp: In function 'int main()':
0_0_30217641_19971.cpp:46:25: error: 'r' was not declared in this scope
       double mid = (l + r) / 2.0;
                         ^
0_0_30217641_19971.cpp:48:14: error: incompatible types in assignment of 'double' to 'int [100007]'
       else l = mid + eps;
              ^
0_0_30217641_19971.cpp:50:22: error: 'r' was not declared in this scope
     printf("%.6f\n", r);
                      ^