View Compilation Error

0_0_39424558_21909.cpp: In function 'int main()':
0_0_39424558_21909.cpp:21:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   21 |                 ans+=i;
      |                 ^~~
      |                 abs
0_0_39424558_21909.cpp:23:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   23 |                 ans+=2*i;
      |                 ^~~
      |                 abs
0_0_39424558_21909.cpp:25:15: error: 'ans' was not declared in this scope; did you mean 'abs'?
   25 |         mp[i]=ans;
      |               ^~~
      |               abs
0_0_39424558_21909.cpp:30:18: error: 'ans' was not declared in this scope; did you mean 'abs'?
   30 |         cout<<mp[ans]<<'\n';
      |                  ^~~
      |                  abs