View Compilation Error

0_0_39870506_18098.cpp: In function 'int main()':
0_0_39870506_18098.cpp:22:30: error: 'ans' was not declared in this scope; did you mean 'as'?
   22 |                 if(!v[3*i+7])ans[i]=ans[i-1]+1;
      |                              ^~~
      |                              as
0_0_39870506_18098.cpp:23:22: error: 'ans' was not declared in this scope; did you mean 'as'?
   23 |                 else ans[i]=ans[i-1];
      |                      ^~~
      |                      as
0_0_39870506_18098.cpp:28:23: error: 'ans' was not declared in this scope; did you mean 'as'?
   28 |                 cout<<ans[n];
      |                       ^~~
      |                       as