View Compilation Error

0_0_22024854_13971.cpp: In function 'bool bfs()':
0_0_22024854_13971.cpp:48:5: error: 'queue' was not declared in this scope
     queue<node> q;
     ^
0_0_22024854_13971.cpp:48:15: error: expected primary-expression before '>' token
     queue<node> q;
               ^
0_0_22024854_13971.cpp:48:17: error: 'q' was not declared in this scope
     queue<node> q;
                 ^
0_0_22024854_13971.cpp: In function 'int main()':
0_0_22024854_13971.cpp:122:30: error: 'memset' was not declared in this scope
     memset(vis,-1,sizeof(vis));
                              ^