View Compilation Error

0_0_33325200_3179.cpp: In function 'void BuildDominatorTree(int)':
0_0_33325200_3179.cpp:27:75: error: 'dep' was not declared in this scope
  rep(i,1,n) se[i] = mn[i] = i , F[i] = dfn[i] = fa[i] = pos[i] = idm[i] = dep[i] = 0;
                                                                           ^