View Compilation Error

0_0_30271747_8067.cpp: In function 'void dfs(int, int)':
0_0_30271747_8067.cpp:19:24: error: incompatible types in assignment of 'int' to 'int [2]'
     son[u][0]=son[u][1]=0;
                        ^
0_0_30271747_8067.cpp: In function 'int main()':
0_0_30271747_8067.cpp:76:77: error: expected ';' before '}' token
         for(u=1;u<=n;++u){if(!son[u][0][0]) down[u][0][0]=down[u][1][0]=a[u]}
                                                                             ^