View Compilation Error

0_0_36835790_16171.cpp: In function 'int main()':
0_0_36835790_16171.cpp:40:13: error: 'autoit' was not declared in this scope
         for(autoit=s.begin();it!=s.end();it++)//枚举质因子
             ^
0_0_36835790_16171.cpp:40:30: error: 'it' was not declared in this scope
         for(autoit=s.begin();it!=s.end();it++)//枚举质因子
                              ^