View Compilation Error

0_0_39072613_1296.cpp: In function 'int main()':
0_0_39072613_1296.cpp:21:46: error: 'cn2' was not declared in this scope; did you mean 'cnt'?
   21 |                 if(cnt==0||cnt==1&&kl[1]!=1||cn2==2&&kl[1]!=2){
      |                                              ^~~
      |                                              cnt