hdu2275 Kiki & Little Kiki 1

#include <iostream>
#include <set>
#include <cstdio>
using namespace std;

multiset<int>mset;
multiset<int>::iterator iter1,iter2;

int main()
{
	int n,x;
	char str[10];
	while(scanf("%d",&n)!=EOF)
	{
		mset.clear();
		while(n--)
		{
			scanf("%s %d",str,&x);
			if(str[1]=='u')
				mset.insert(x);
			else
			{
				if (x<*(mset.begin()))
				{
					printf("No Element!\n");
					continue;
				}
				iter1=mset.find(x);
				if(iter1!=mset.end())
				{
					printf("%d\n",*iter1);
					mset.erase(iter1);
				}
				else
				{
					mset.insert(x);
					iter1=iter2=mset.find(x);
					iter1--;
					printf("%d\n",*iter1);
					mset.erase(iter1);
					mset.erase(iter2);
				}
			}//else
		}//while
		printf("\n");
	}//while
	return 0;
}