mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
808996d897
5100-5199
33 lines
894 B
C++
33 lines
894 B
C++
#include<iostream>
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#include<stdio.h>
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#include<algorithm>
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using namespace std;
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#include<list>
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typedef pair<long long ,long long > candy;
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list<candy> s;
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int main()
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{
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int n;
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while( scanf("%d",&n) && n ){
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s.clear();
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while(n--){
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long long x,y,z;
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scanf("%I64d%I64d%I64d",&z,&x,&y);
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candy aa ; aa.first=x; aa.second=y;
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if(z==1 ) { s.push_front(aa); }
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else if(z==-1) {
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for(list<candy>::iterator i=s.begin();i!=s.end();i++)
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if((*i).first==x&&(*i).second==y) { s.erase(i); break; }
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}
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else if(z==0) {
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long long sum=-0x7f7f7f7f;
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for(list<candy>::iterator i=s.begin();i!=s.end();i++) {
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sum = max(sum, (*i).first*x+(*i).second*y);
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}
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cout<<sum<<endl;
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}
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}
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}
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return 0;
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}
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