foo.cc: In function 'void solve()':
foo.cc:5:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |     cin>>n>>m>>a>>b>>c>>d>>k;
      |     ^~~
      |     std::cin
In file included from foo.cc:1:
/usr/include/c++/9/iostream:60:18: note: 'std::cin' declared here
   60 |   extern istream cin;  /// Linked to standard input
      |                  ^~~
foo.cc:11:5: error: 'array' was not declared in this scope
   11 |     array<int,2> dir8[] = {
      |     ^~~~~
foo.cc:11:11: error: expected primary-expression before 'int'
   11 |     array<int,2> dir8[] = {
      |           ^~~
foo.cc:22:5: error: 'dp' was not declared in this scope; did you mean 'd'?
   22 |     dp[a][b][0] = 1;
      |     ^~
      |     d
foo.cc:29:29: error: 'dir8' was not declared in this scope
   29 |                 for(auto _: dir8)
      |                             ^~~~
foo.cc:32:31: error: 'y1' was not declared in this scope; did you mean 'x1'?
   32 |                     if(ok(x1, y1))
      |                               ^~
      |                               x1
foo.cc:41:5: error: 'Mint' was not declared in this scope; did you mean 'uint'?
   41 |     Mint ans = 0;
      |     ^~~~
      |     uint
foo.cc:42:27: error: 'ans' was not declared in this scope; did you mean 'abs'?
   42 |     for(int i=1;i<=k;i++) ans += dp[c][d][i];
      |                           ^~~
      |                           abs
foo.cc:43:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   43 |     cout<<ans<<'\n';
      |     ^~~~
      |     std::cout
In file included from foo.cc:1:
/usr/include/c++/9/iostream:61:18: note: 'std::cout' declared here
   61 |   extern ostream cout;  /// Linked to standard output
      |                  ^~~~
foo.cc:43:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   43 |     cout<<ans<<'\n';
      |           ^~~
      |           abs

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