View Compilation Error

0_0_39534865_28869.cpp: In function 'int main()':
0_0_39534865_28869.cpp:51:42: error: 'cnft' was not declared in this scope; did you mean 'cnt'?
   51 |                 for (int i=1;i<=len;++i) cnft[i]=0;
      |                                          ^~~~
      |                                          cnt