View Compilation Error

0_0_39574748_10285.cpp: In function 'bool bfs()':
0_0_39574748_10285.cpp:87:20: error: expected ';' at end of input
   87 |                 a.x
      |                    ^
      |                    ;
0_0_39574748_10285.cpp:87:20: error: expected '}' at end of input
0_0_39574748_10285.cpp:85:41: note: to match this '{'
   85 |             for (int j = 0; j < 4; ++j) {
      |                                         ^
0_0_39574748_10285.cpp:87:20: error: expected '}' at end of input
   87 |                 a.x
      |                    ^
0_0_39574748_10285.cpp:84:37: note: to match this '{'
   84 |         for (int i = 0; i < 4; ++i) {
      |                                     ^
0_0_39574748_10285.cpp:87:20: error: expected '}' at end of input
   87 |                 a.x
      |                    ^
0_0_39574748_10285.cpp:73:24: note: to match this '{'
   73 |     while (!q.empty()) {
      |                        ^
0_0_39574748_10285.cpp:87:20: error: expected '}' at end of input
   87 |                 a.x
      |                    ^
0_0_39574748_10285.cpp:51:12: note: to match this '{'
   51 | bool bfs() {
      |            ^