View Compilation Error

0_0_36706360_20620.cpp:1:2: error: stray '#' in program
 V#include<iostream>
  ^
0_0_36706360_20620.cpp:1:1: error: 'V' does not name a type
 V#include<iostream>
 ^
0_0_36706360_20620.cpp: In function 'int main()':
0_0_36706360_20620.cpp:7:1: error: 'cin' was not declared in this scope
 cin>>T;//组数
 ^
0_0_36706360_20620.cpp:29:1: error: 'cout' was not declared in this scope
 cout<<arr[0];
 ^
0_0_36706360_20620.cpp:35:7: error: 'endl' was not declared in this scope
 cout<<endl;
       ^