View Compilation Error

0_0_19609418_27774.cpp:2:4: error: stray '#' in program
  2 #include <iostream>
    ^
0_0_19609418_27774.cpp:2:2: error: expected unqualified-id before numeric constant
  2 #include <iostream>
  ^
0_0_19609418_27774.cpp:4:2: error: expected unqualified-id before numeric constant
  4 const int mod=1000000007;
  ^
0_0_19609418_27774.cpp:5:2: error: expected unqualified-id before numeric constant
  5 int f[10000005];
  ^
0_0_19609418_27774.cpp:6:2: error: expected unqualified-id before numeric constant
  6 int sf(int x){return x==f[x]? x: f[x]=sf(f[x]);}
  ^
0_0_19609418_27774.cpp:7:2: error: expected unqualified-id before numeric constant
  7 int Union(int x,int y){
  ^
0_0_19609418_27774.cpp:12:1: error: expected unqualified-id before numeric constant
 12 long long power(int x){
 ^
0_0_19609418_27774.cpp:19:1: error: expected unqualified-id before numeric constant
 19 int main(){
 ^