답안 #67692 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
67692	2018-08-15T08:43:50 Z	zscoder	커다란 상품 (IOI17_prize)	C++17	99.75 / 100	76 ms	3020 KB

prize

#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> ii;

#define fi first
#define se second
#define pb push_back
#define mp make_pair

ii dp[442311];
int n;
int totalquery;
const int MX = 10000;
ii query(int x)
{
	if(x<0||x>=n) return mp(0,0);
	if(dp[x].fi>=0) return dp[x];
	totalquery++; //assert(totalquery<=MX);
	vector<int> a = ask(x);
	dp[x].fi=a[0]; dp[x].se=a[1]; return dp[x];
}

vi global;
vector<int> vec;
int newmax;

void solve(int l, int r)
{
	if(l>r) return ;
	//later optimize by using count 
	int mid=(l+r)>>1;
	ii cntl=query(vec[l]);
	assert(cntl.fi+cntl.se<=newmax);
	if(cntl.fi+cntl.se<newmax){global.pb(vec[l]); solve(l+1,r); return ;}
	ii cntr=query(vec[r]);
	assert(cntr.fi+cntr.se<=newmax);
	if(cntr.fi+cntr.se<newmax){global.pb(vec[r]); solve(l,r-1); return ;}
	ii tmp = query(vec[mid]);
	assert(tmp.fi+tmp.se<=newmax);
	if(tmp.fi+tmp.se<newmax)
	{
		global.pb(vec[mid]);
		solve(l,mid-1); solve(mid+1,r);
		return ;
	}
	int cntleft = tmp.fi-cntl.fi;
	int cntright = tmp.se-cntr.se;
	if(cntleft) solve(l,mid);
	if(cntright) solve(mid,r);
}

int find_best(int _n) 
{
	n=_n;
	for(int i=0;i<n;i++) {dp[i]=mp(-1,-1);vec.pb(i);}
	while(vec.size()>1)
	{
		global.clear(); int C=0; int cr=int(vec.size());
		int p=1;
		while(cr>1)
		{
			C+=int(sqrt(cr))+p; cr=int(sqrt(cr)); p=0;
		}
		C=min(C,int(vec.size()));
		newmax=0;
		for(int i=0;i<C;i++) 
		{
			newmax=max(newmax,query(vec[i]).fi+query(vec[i]).se);
			if(newmax>=27) break;
		}
		solve(0,int(vec.size())-1);
		vec=global; sort(vec.begin(),vec.end()); vec.erase(unique(vec.begin(),vec.end()),vec.end());
	}
	return vec[0];
}

Subtask #1
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	2792 KB	Output is correct
2	Correct	10 ms	2856 KB	Output is correct
3	Correct	17 ms	2928 KB	Output is correct
4	Correct	14 ms	2928 KB	Output is correct
5	Correct	13 ms	2928 KB	Output is correct
6	Correct	14 ms	2928 KB	Output is correct
7	Correct	17 ms	3020 KB	Output is correct
8	Correct	11 ms	3020 KB	Output is correct
9	Correct	10 ms	3020 KB	Output is correct
10	Correct	13 ms	3020 KB	Output is correct

Subtask #2
79.75 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	3020 KB	Output is correct
2	Correct	12 ms	3020 KB	Output is correct
3	Correct	11 ms	3020 KB	Output is correct
4	Correct	14 ms	3020 KB	Output is correct
5	Correct	12 ms	3020 KB	Output is correct
6	Correct	10 ms	3020 KB	Output is correct
7	Correct	11 ms	3020 KB	Output is correct
8	Correct	11 ms	3020 KB	Output is correct
9	Correct	13 ms	3020 KB	Output is correct
10	Correct	12 ms	3020 KB	Output is correct
11	Correct	14 ms	3020 KB	Output is correct
12	Correct	12 ms	3020 KB	Output is correct
13	Correct	12 ms	3020 KB	Output is correct
14	Correct	12 ms	3020 KB	Output is correct
15	Correct	36 ms	3020 KB	Output is correct
16	Correct	64 ms	3020 KB	Output is correct
17	Correct	71 ms	3020 KB	Output is correct
18	Correct	49 ms	3020 KB	Output is correct
19	Correct	68 ms	3020 KB	Output is correct
20	Correct	35 ms	3020 KB	Output is correct
21	Correct	66 ms	3020 KB	Output is correct
22	Correct	61 ms	3020 KB	Output is correct
23	Correct	11 ms	3020 KB	Output is correct
24	Correct	12 ms	3020 KB	Output is correct
25	Correct	62 ms	3020 KB	Output is correct
26	Correct	25 ms	3020 KB	Output is correct
27	Correct	14 ms	3020 KB	Output is correct
28	Correct	72 ms	3020 KB	Output is correct
29	Correct	27 ms	3020 KB	Output is correct
30	Correct	67 ms	3020 KB	Output is correct
31	Correct	65 ms	3020 KB	Output is correct
32	Correct	14 ms	3020 KB	Output is correct
33	Correct	2 ms	3020 KB	Output is correct
34	Correct	55 ms	3020 KB	Output is correct
35	Correct	14 ms	3020 KB	Output is correct
36	Correct	60 ms	3020 KB	Output is correct
37	Correct	11 ms	3020 KB	Output is correct
38	Correct	13 ms	3020 KB	Output is correct
39	Correct	44 ms	3020 KB	Output is correct
40	Correct	41 ms	3020 KB	Output is correct
41	Correct	42 ms	3020 KB	Output is correct
42	Correct	69 ms	3020 KB	Output is correct
43	Correct	73 ms	3020 KB	Output is correct
44	Correct	72 ms	3020 KB	Output is correct
45	Correct	57 ms	3020 KB	Output is correct
46	Correct	56 ms	3020 KB	Output is correct
47	Correct	39 ms	3020 KB	Output is correct
48	Correct	53 ms	3020 KB	Output is correct
49	Correct	61 ms	3020 KB	Output is correct
50	Correct	61 ms	3020 KB	Output is correct
51	Correct	59 ms	3020 KB	Output is correct
52	Correct	67 ms	3020 KB	Output is correct
53	Correct	13 ms	3020 KB	Output is correct
54	Correct	46 ms	3020 KB	Output is correct
55	Correct	69 ms	3020 KB	Output is correct
56	Correct	76 ms	3020 KB	Output is correct
57	Correct	63 ms	3020 KB	Output is correct
58	Correct	31 ms	3020 KB	Output is correct
59	Correct	54 ms	3020 KB	Output is correct
60	Correct	60 ms	3020 KB	Output is correct
61	Correct	15 ms	3020 KB	Output is correct
62	Correct	14 ms	3020 KB	Output is correct
63	Correct	13 ms	3020 KB	Output is correct
64	Correct	16 ms	3020 KB	Output is correct
65	Correct	8 ms	3020 KB	Output is correct
66	Correct	11 ms	3020 KB	Output is correct
67	Correct	9 ms	3020 KB	Output is correct
68	Correct	13 ms	3020 KB	Output is correct
69	Correct	7 ms	3020 KB	Output is correct
70	Correct	11 ms	3020 KB	Output is correct
71	Correct	25 ms	3020 KB	Output is correct
72	Correct	11 ms	3020 KB	Output is correct
73	Correct	38 ms	3020 KB	Output is correct
74	Correct	32 ms	3020 KB	Output is correct
75	Correct	14 ms	3020 KB	Output is correct
76	Correct	50 ms	3020 KB	Output is correct
77	Partially correct	54 ms	3020 KB	Partially correct - number of queries: 5025
78	Correct	11 ms	3020 KB	Output is correct
79	Correct	31 ms	3020 KB	Output is correct
80	Correct	41 ms	3020 KB	Output is correct
81	Correct	62 ms	3020 KB	Output is correct
82	Correct	43 ms	3020 KB	Output is correct
83	Correct	16 ms	3020 KB	Output is correct
84	Correct	42 ms	3020 KB	Output is correct
85	Correct	72 ms	3020 KB	Output is correct
86	Correct	13 ms	3020 KB	Output is correct
87	Correct	6 ms	3020 KB	Output is correct
88	Correct	12 ms	3020 KB	Output is correct
89	Correct	15 ms	3020 KB	Output is correct
90	Correct	10 ms	3020 KB	Output is correct
91	Correct	9 ms	3020 KB	Output is correct
92	Correct	10 ms	3020 KB	Output is correct
93	Correct	14 ms	3020 KB	Output is correct
94	Correct	14 ms	3020 KB	Output is correct
95	Correct	12 ms	3020 KB	Output is correct
96	Correct	17 ms	3020 KB	Output is correct
97	Correct	9 ms	3020 KB	Output is correct

답안 #67692

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 79.75 / 80.0

Subtask #1
20.0 / 20.0

Subtask #2
79.75 / 80.0