View Compilation Error

0_0_38916129_20760.cpp:2:1: error: 'cin' does not name a type
    2 | cin>>i;
      | ^~~
0_0_38916129_20760.cpp:4:1: error: expected unqualified-id before 'for'
    4 | for (int j=0;j<i;j++)
      | ^~~
0_0_38916129_20760.cpp:4:14: error: 'j' does not name a type
    4 | for (int j=0;j<i;j++)
      |              ^
0_0_38916129_20760.cpp:4:18: error: 'j' does not name a type
    4 | for (int j=0;j<i;j++)
      |                  ^
0_0_38916129_20760.cpp:21:1: error: expected declaration before '}' token
   21 | }
      | ^