View Compilation Error

0_0_34735420_2303.cpp: In function 'int main()':
0_0_34735420_2303.cpp:35:6: error: 'cnt' was not declared in this scope
      cnt--;
      ^
0_0_34735420_2303.cpp:40:9: error: 'cnt' was not declared in this scope
   cout<<cnt<<endl;
         ^