View Compilation Error

0_0_27075516_28268.cpp: In function 'bool cmp(node, node)':
0_0_27075516_28268.cpp:14:37: error: 'elsereturn' was not declared in this scope
 {if(x.num==y.num)return x.id < y.id;elsereturn x.num > y.num;
                                     ^