View Compilation Error

0_0_27118932_8614.cpp: In function 'int dfs(int, int)':
0_0_27118932_8614.cpp:68:5: error: redefinition of 'int dfs(int, int)'
 int dfs(int u,int flow)
     ^
0_0_27118932_8614.cpp:48:5: note: 'int dfs(int, int)' previously defined here
 int dfs(int u,int w)
     ^
0_0_27118932_8614.cpp:73:37: error: 'struct node' has no member named 'nxt'
     for(int i=cur[u]; i!=-1; i=e[i].nxt)
                                     ^
0_0_27118932_8614.cpp:76:12: error: 'depth' was not declared in this scope
         if(depth[v]==depth[u]+1&&e[i].w>0&&(tmp=dfs(v,min(flow,e[i].w)))>0)
            ^