Submission #38970

#	Time	Username	Problem	Language	Result	Execution time	Memory
38970		faustaadp	커다란 상품 (IOI17_prize)	C++14	90 / 100	109 ms	33844 KiB

prize

#include "prize.h"
#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll l,r,c,ma,b[1010101];
vector<int> v;
vector<int> d[1010101];
int find_best(int n) {
	for(int i = 0; i < n; i++) {
		std::vector<int> res ;
		if(b[i]==0)
		{
			res=ask(i);
			d[i]=res;
		}
		else
			res=d[i];
		if(res[0] + res[1] == 0)
			return i;
		ma=max((ll)ma,(ll)(res[0]+res[1]));
		if(res[0]+res[1]!=ma)
			continue;
		l=i+1;
		r=n-1;
		while(l<=r)
		{
			c=(l+r)/2;
			if(b[c]==0)
			{
				b[c]=1;
				v=ask(c);
				d[c]=v;
			}
			else
				v=d[c];
			if(v[0]==res[0]&&v[1]==res[1])
			{
				i=c;
				l=c+1;
			}
			else
				r=c-1;
		}
	}
	return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 70 / 80