View Compilation Error

0_0_39592178_20476.cpp: In function 'void solve()':
0_0_39592178_20476.cpp:16:14: error: 'n' was not declared in this scope
   16 |         cin>>n>>m;
      |              ^
0_0_39592178_20476.cpp:16:17: error: 'm' was not declared in this scope; did you mean 'tm'?
   16 |         cin>>n>>m;
      |                 ^
      |                 tm