Run id: 91409

Main.cc: In function 'int s2(int)':
Main.cc:17:24: error: 'n' was not declared in this scope
     for(int i = 2;i <= n / 2;i++){ 
                        ^
Main.cc:23:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
Main.cc: In function 'int main()':
Main.cc:25:45: error: 'fenjie' was not declared in this scope
     for(int i = 6;i <= 100;i += 2)  fenjie(i); 
                                             ^