View Compilation Error

0_0_36729354_24330.cpp: In function 'void spfa()':
0_0_36729354_24330.cpp:9:5: error: 'queue' was not declared in this scope
     queue<int> q;
     ^
0_0_36729354_24330.cpp:9:11: error: expected primary-expression before 'int'
     queue<int> q;
           ^
0_0_36729354_24330.cpp:10:5: error: 'q' was not declared in this scope
     q.push(1);vis[1]=1;
     ^
0_0_36729354_24330.cpp: In function 'int main()':
0_0_36729354_24330.cpp:32:32: error: 'memset' was not declared in this scope
         memset(vis,0,sizeof vis);
                                ^