You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

14 lines
242 B

#include<bits/stdc++.h>
using namespace std;
int main()
{
int a[] = {1,2,3};
set<int> s(a,a+3);
set<int>::iterator iter;
if((iter = s.find(2)) != s.end())
{
cout<<*iter<<endl;//输出为2
}
return 0;
}