View Compilation Error

0_0_13605041_17763.cpp: In function 'long long int find(long long int, int)':
0_0_13605041_17763.cpp:29:18: error: expected initializer before 'r'
  long long int l r = (long long int)pow(x, 1.0 / k);
                  ^
0_0_13605041_17763.cpp:30:9: error: 'r' was not declared in this scope
  return r;
         ^