View Compilation Error

0_0_38493424_16024.cpp: In function 'double dfs1(int, int)':
0_0_38493424_16024.cpp:9:23: error: cannot convert 'double*' to 'double' in initialization
  double tmp=&f[1][a][b];
                       ^
0_0_38493424_16024.cpp: In function 'double dfs0(int, int)':
0_0_38493424_16024.cpp:21:23: error: cannot convert 'double*' to 'double' in initialization
  double tmp=&f[0][a][b];
                       ^