View Compilation Error

0_0_14817168_14693.cpp: In function 'int main()':
0_0_14817168_14693.cpp:65:21: error: invalid operands of types 'double' and 'double [55]' to binary 'operator>'
     if(w>cost[dx][dx]||tmp.k-1<0||fabs(w-cost[dx][dy])<1e-7)
                     ^
0_0_14817168_14693.cpp:65:53: error: invalid operands of types 'double' and 'double [55]' to binary 'operator-'
     if(w>cost[dx][dx]||tmp.k-1<0||fabs(w-cost[dx][dy])<1e-7)
                                                     ^
0_0_14817168_14693.cpp:68:17: error: incompatible types in assignment of 'double' to 'double [55]'
     cost[dx][dy]=w;
                 ^
0_0_14817168_14693.cpp:74:24: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   if(cost[end1][end2]==maxn)
                        ^