View Compilation Error

0_0_26014774_7240.cpp:4:31: error: conflicting declaration 'bool d [505][505]'
 bool v[505][505][4],d[505][505];
                               ^
0_0_26014774_7240.cpp:3:33: note: previous declaration as 'int d [505][505]'
 int b[4][2]={0,-1,1,0,0,1,-1,0},d[505][505],n,m,s1,e1,flat;
                                 ^