View Compilation Error

0_0_38077722_12811.cpp:2:4: error: stray '#' in program
  2 #include<iostream>
    ^
0_0_38077722_12811.cpp:3:4: error: stray '#' in program
  3 #include<algorithm>
    ^
0_0_38077722_12811.cpp:4:4: error: stray '#' in program
  4 #include<queue>
    ^
0_0_38077722_12811.cpp:2:2: error: expected unqualified-id before numeric constant
  2 #include<iostream>
  ^
0_0_38077722_12811.cpp:6:2: error: expected unqualified-id before numeric constant
  6 typedef long long ll;
  ^
0_0_38077722_12811.cpp:7:2: error: expected unqualified-id before numeric constant
  7 const int N=50;
  ^
0_0_38077722_12811.cpp:8:2: error: expected unqualified-id before numeric constant
  8 struct node{
  ^
0_0_38077722_12811.cpp:10:5: error: 'a' does not name a type
 10 }a[3];
     ^
0_0_38077722_12811.cpp:11:1: error: expected unqualified-id before numeric constant
 11 struct Node{
 ^