foo.cc: In function 'void solve()':
foo.cc:12:5: error: 'array' was not declared in this scope
   12 |     array<int,2> dir8[] = {
      |     ^~~~~
foo.cc:2:1: note: 'std::array' is defined in header '<array>'; did you forget to '#include <array>'?
    1 | #include<iostream>
  +++ |+#include <array>
    2 | using namespace std;
foo.cc:12:11: error: expected primary-expression before 'int'
   12 |     array<int,2> dir8[] = {
      |           ^~~
foo.cc:24:1: error: a function-definition is not allowed here before '{' token
   24 | {
      | ^
foo.cc:48:1: error: expected '}' at end of input
   48 | }
      | ^
foo.cc:4:1: note: to match this '{'
    4 | {
      | ^

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