View Compilation Error

0_0_25872907_10737.cpp: In function 'void bfs()':
0_0_25872907_10737.cpp:53:4: error: expected '}' before 'else'
    else continue;
    ^
0_0_25872907_10737.cpp:55:3: error: 'else' without a previous 'if'
   else continue;
   ^
0_0_25872907_10737.cpp:55:8: error: continue statement not within a loop
   else continue;
        ^
0_0_25872907_10737.cpp: At global scope:
0_0_25872907_10737.cpp:68:1: error: expected declaration before '}' token
 }
 ^