View Compilation Error

0_0_33324676_28103.cpp:9:1: error: expected ';' after struct definition
 }
 ^
0_0_33324676_28103.cpp:17:5: error: expected primary-expression before 'while'
     while(!q.empty())
     ^
0_0_33324676_28103.cpp:17:5: error: expected '}' before 'while'
0_0_33324676_28103.cpp:17:5: error: expected ',' or ';' before 'while'
0_0_33324676_28103.cpp:22:1: error: expected declaration before '}' token
 }
 ^