View Compilation Error

0_0_39576285_18588.cpp: In function 'void solve()':
0_0_39576285_18588.cpp:104:30: error: 'Ks' was not declared in this scope; did you mean 'K'?
  104 |     cout << max(dp[K][0], dp[Ks][1]) << '\n';
      |                              ^~
      |                              K