foo.cc:35:2: error: expected initializer before 'std'
   35 |  std::ios::sync_with_stdio(0);
      |  ^~~
foo.cc:36:7: error: 'cin' in namespace 'std' does not name a type
   36 |  std::cin.tie(0);
      |       ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
                 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:37:7: error: 'cout' in namespace 'std' does not name a type
   37 |  std::cout.tie(0);
      |       ^~~~
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
                 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:38:2: error: 'cin' does not name a type; did you mean 'sin'?
   38 |  cin>>n>>m;
      |  ^~~
      |  sin
foo.cc:39:2: error: expected unqualified-id before 'for'
   39 |  for(int i=1; i<=n; i++)
      |  ^~~
foo.cc:39:15: error: 'i' does not name a type
   39 |  for(int i=1; i<=n; i++)
      |               ^
foo.cc:39:21: error: 'i' does not name a type
   39 |  for(int i=1; i<=n; i++)
      |                     ^
foo.cc:40:16: error: 'j' does not name a type
   40 |   for(int j=1; j<=m; j++)
      |                ^
foo.cc:40:22: error: 'j' does not name a type
   40 |   for(int j=1; j<=m; j++)
      |                      ^
foo.cc:42:2: error: expected unqualified-id before 'for'
   42 |  for(int i=1; i<=n; i++)
      |  ^~~
foo.cc:42:15: error: 'i' does not name a type
   42 |  for(int i=1; i<=n; i++)
      |               ^
foo.cc:42:21: error: 'i' does not name a type
   42 |  for(int i=1; i<=n; i++)
      |                     ^
foo.cc:43:16: error: 'j' does not name a type
   43 |   for(int j=1; j<=m; j++)
      |                ^
foo.cc:43:22: error: 'j' does not name a type
   43 |   for(int j=1; j<=m; j++)
      |                      ^
foo.cc:58:2: error: 'cout' does not name a type
   58 |  cout<<ans1<<endl<<ans2<<endl;
      |  ^~~~
foo.cc:59:2: error: expected unqualified-id before 'return'
   59 |  return 0;
      |  ^~~~~~
foo.cc:60:1: error: expected declaration before '}' token
   60 | }
      | ^

正在同步测试数据，请稍后
Found 10 testcases.
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