View Compilation Error

0_0_13664549_9641.cpp:13:1: error: invalid use of template-name 'std::queue' without an argument list
 queue  que ;
 ^
0_0_13664549_9641.cpp: In function 'int main()':
0_0_13664549_9641.cpp:19:11: error: 'que' was not declared in this scope
   while( !que.empty() )
           ^
0_0_13664549_9641.cpp:31:5: error: 'que' was not declared in this scope
     que.push(i) ;
     ^
0_0_13664549_9641.cpp:32:11: error: 'que' was not declared in this scope
   while( !que.empty() )
           ^