View Compilation Error

0_0_28872387_18301.cpp: In function 'int bfs(int, int)':
0_0_28872387_18301.cpp:39:5: error: expected '}' before 'else'
     else if(mp[nex.x][nex.y]=='x')
     ^
0_0_28872387_18301.cpp: At global scope:
0_0_28872387_18301.cpp:51:2: error: expected unqualified-id before 'return'
  return -1;
  ^
0_0_28872387_18301.cpp:52:1: error: expected declaration before '}' token
 }
 ^