View Compilation Error

0_0_36271330_6705.cpp: In function 'int main()':
0_0_36271330_6705.cpp:22:10: error: 't' was not declared in this scope
   memset(t,0,sizeof(t));
          ^
0_0_36271330_6705.cpp:28:7: error: too few arguments to function 'void bfs(node)'
   bfs();
       ^
0_0_36271330_6705.cpp:9:6: note: declared here
 void bfs(node s){
      ^