View Compilation Error

0_0_20564108_11036.cpp: In function 'int main()':
0_0_20564108_11036.cpp:32:20: 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_20564108_11036.cpp:32:21: 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_20564108_11036.cpp:33:21: error: 'i' was not declared in this scope
         for(int i=1;i<=n;i++){  
                     ^