View Compilation Error

0_0_30927851_5889.cpp: In function 'int main()':
0_0_30927851_5889.cpp:32:14: error: expected primary-expression before '<' token
   int sign=0;<span style="font-family:Arial;">//用来标记是否所有度数为偶数</span>
              ^
0_0_30927851_5889.cpp:32:15: error: 'span' was not declared in this scope
   int sign=0;<span style="font-family:Arial;">//用来标记是否所有度数为偶数</span>
               ^
0_0_30927851_5889.cpp:33:15: error: 'i' was not declared in this scope
   for(int i=1;i<=n;i++){
               ^