View Compilation Error

0_0_3907069_18936.cpp: In function `void bfs(int&, int&)':
0_0_3907069_18936.cpp:5: error: `hasha' undeclared (first use this function)
0_0_3907069_18936.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3907069_18936.cpp:5: error: `hashb' undeclared (first use this function)
0_0_3907069_18936.cpp:5: error: 'struct que' has no member named 's'
0_0_3907069_18936.cpp:5: error: 'struct que' has no member named 's'
0_0_3907069_18936.cpp:5: error: `can' undeclared (first use this function)
0_0_3907069_18936.cpp:5: error: 'struct que' has no member named 's'
0_0_3907069_18936.cpp:5: error: 'struct que' has no member named 's'
0_0_3907069_18936.cpp:5: error: 'struct que' has no member named 's'
0_0_3907069_18936.cpp:5: error: 'struct que' has no member named 's'