View Compilation Error

0_0_33097354_27789.cpp: In member function 'll Dinic::dinic_dfs(int, ll)':
0_0_33097354_27789.cpp:60:10: error: 'd' was not declared in this scope
          d[u] = -1;
          ^
0_0_33097354_27789.cpp: In member function 'll Dinic::dinic_flow()':
0_0_33097354_27789.cpp:69:30: error: 's' was not declared in this scope
             res += dinic_dfs(s, inf);
                              ^