View Compilation Error

0_0_39122100_15981.cpp: In function 'int main()':
0_0_39122100_15981.cpp:94:33: error: 'id' was not declared in this scope; did you mean 'idt'?
   94 |                 cout<<"Case #"<<id<<": "<<Gy[n]<<'\n';
      |                                 ^~
      |                                 idt