47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#include <iostream>
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#include <set>
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#include <cstdio>
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using namespace std;
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multiset<int>mset;
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multiset<int>::iterator iter1,iter2;
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int main()
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{
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int n,x;
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char str[10];
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while(scanf("%d",&n)!=EOF)
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{
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mset.clear();
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while(n--)
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{
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scanf("%s %d",str,&x);
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if(str[1]=='u')
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mset.insert(x);
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else
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{
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if (x<*(mset.begin()))
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{
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printf("No Element!\n");
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continue;
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}
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iter1=mset.find(x);
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if(iter1!=mset.end())
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{
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printf("%d\n",*iter1);
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mset.erase(iter1);
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}
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else
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{
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mset.insert(x);
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iter1=iter2=mset.find(x);
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iter1--;
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printf("%d\n",*iter1);
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mset.erase(iter1);
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mset.erase(iter2);
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}
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}
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}
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printf("\n");
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}
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return 0;
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}
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