답안 #571262

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
571262	2022-06-01T15:29:12 Z	ian86	커다란 상품 (IOI17_prize)	C++14	100 / 100	54 ms	2184 KB

prize

#include <vector>
#include <cmath>
#include <cstring>
#include "prize.h"
#define X first
#define Y second
using namespace std;

typedef pair<int,int> pii;

int numb;
pii P[210000];
bool mark[210000];
vector<int>vtmp;

pii query(int x)
{
  if(mark[x]) return P[x];
  mark[x]=true;
  vtmp=ask(x);
  pii tmp=pii(vtmp[0],vtmp[1]);
  if(tmp.X+tmp.Y==0) throw x;
  return P[x]=tmp;
}

void bs(int l,int r,int nl,int nr)
{
  if(l>r) return;
  for(int i=0;i<=r-l;i++)
    {
      int mid,midl=(l+r)/2-i/2,midr=(l+r)/2+(i+1)/2;
      if(i%2==0) mid=midl;
      else mid=midr;
      pii tmp=query(mid);
      if(tmp.X+tmp.Y==numb)
	{
	  int tmpl=(i%2==0?0:midr-midl);
	  int tmpr=(i%2==1?0:midr-midl);
	  if(tmp.X-tmpl>nl) bs(l,midl-1,nl,tmp.Y+tmpl);
	  if(tmp.Y-tmpr>nr) bs(midr+1,r,tmp.X+tmpr,nr);
	  break;
	}
    }
}

int find_best(int n)
{
  if(n==1) return 0;
  try{
    numb=0;
    memset(mark,false,sizeof mark);
    int p=0;
    for(int i=0;i<sqrt(n)+30 && i<n && numb<=26;i++)
      {
	pii tmp=query(i);
	if(tmp.X+tmp.Y>numb) p=i;
	numb=max(numb,tmp.X+tmp.Y);
      }
    bs(p,n-1,p,0);
  }
  catch(int ans){
    return ans;
  }
  return -1;
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	556 KB	Output is correct
2	Correct	9 ms	548 KB	Output is correct
3	Correct	6 ms	592 KB	Output is correct
4	Correct	9 ms	496 KB	Output is correct
5	Correct	9 ms	500 KB	Output is correct
6	Correct	3 ms	552 KB	Output is correct
7	Correct	7 ms	552 KB	Output is correct
8	Correct	6 ms	552 KB	Output is correct
9	Correct	10 ms	464 KB	Output is correct
10	Correct	7 ms	524 KB	Output is correct

Subtask #2

80.0 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	556 KB	Output is correct
2	Correct	8 ms	496 KB	Output is correct
3	Correct	8 ms	556 KB	Output is correct
4	Correct	7 ms	548 KB	Output is correct
5	Correct	8 ms	508 KB	Output is correct
6	Correct	2 ms	456 KB	Output is correct
7	Correct	4 ms	512 KB	Output is correct
8	Correct	7 ms	548 KB	Output is correct
9	Correct	9 ms	500 KB	Output is correct
10	Correct	6 ms	512 KB	Output is correct
11	Correct	6 ms	712 KB	Output is correct
12	Correct	2 ms	492 KB	Output is correct
13	Correct	7 ms	1096 KB	Output is correct
14	Correct	4 ms	592 KB	Output is correct
15	Correct	8 ms	812 KB	Output is correct
16	Correct	21 ms	1844 KB	Output is correct
17	Correct	2 ms	508 KB	Output is correct
18	Correct	32 ms	2076 KB	Output is correct
19	Correct	3 ms	552 KB	Output is correct
20	Correct	11 ms	784 KB	Output is correct
21	Correct	23 ms	1064 KB	Output is correct
22	Correct	4 ms	628 KB	Output is correct
23	Correct	7 ms	592 KB	Output is correct
24	Correct	3 ms	556 KB	Output is correct
25	Correct	24 ms	1304 KB	Output is correct
26	Correct	22 ms	1440 KB	Output is correct
27	Correct	7 ms	628 KB	Output is correct
28	Correct	20 ms	1920 KB	Output is correct
29	Correct	17 ms	1740 KB	Output is correct
30	Correct	32 ms	2096 KB	Output is correct
31	Correct	2 ms	552 KB	Output is correct
32	Correct	8 ms	968 KB	Output is correct
33	Correct	2 ms	464 KB	Output is correct
34	Correct	18 ms	1016 KB	Output is correct
35	Correct	9 ms	676 KB	Output is correct
36	Correct	12 ms	804 KB	Output is correct
37	Correct	4 ms	676 KB	Output is correct
38	Correct	8 ms	584 KB	Output is correct
39	Correct	23 ms	1248 KB	Output is correct
40	Correct	44 ms	2056 KB	Output is correct
41	Correct	29 ms	1352 KB	Output is correct
42	Correct	30 ms	1504 KB	Output is correct
43	Correct	20 ms	1320 KB	Output is correct
44	Correct	10 ms	1184 KB	Output is correct
45	Correct	15 ms	936 KB	Output is correct
46	Correct	2 ms	540 KB	Output is correct
47	Correct	19 ms	1060 KB	Output is correct
48	Correct	30 ms	1716 KB	Output is correct
49	Correct	6 ms	584 KB	Output is correct
50	Correct	43 ms	2024 KB	Output is correct
51	Correct	10 ms	1140 KB	Output is correct
52	Correct	3 ms	564 KB	Output is correct
53	Correct	6 ms	708 KB	Output is correct
54	Correct	26 ms	1192 KB	Output is correct
55	Correct	2 ms	540 KB	Output is correct
56	Correct	54 ms	2020 KB	Output is correct
57	Correct	26 ms	1628 KB	Output is correct
58	Correct	29 ms	1812 KB	Output is correct
59	Correct	27 ms	1436 KB	Output is correct
60	Correct	27 ms	1320 KB	Output is correct
61	Correct	7 ms	712 KB	Output is correct
62	Correct	7 ms	584 KB	Output is correct
63	Correct	8 ms	760 KB	Output is correct
64	Correct	9 ms	680 KB	Output is correct
65	Correct	2 ms	540 KB	Output is correct
66	Correct	9 ms	548 KB	Output is correct
67	Correct	4 ms	544 KB	Output is correct
68	Correct	6 ms	548 KB	Output is correct
69	Correct	6 ms	548 KB	Output is correct
70	Correct	3 ms	544 KB	Output is correct
71	Correct	49 ms	2120 KB	Output is correct
72	Correct	7 ms	1104 KB	Output is correct
73	Correct	54 ms	2088 KB	Output is correct
74	Correct	53 ms	2100 KB	Output is correct
75	Correct	9 ms	720 KB	Output is correct
76	Correct	38 ms	2036 KB	Output is correct
77	Correct	42 ms	2088 KB	Output is correct
78	Correct	7 ms	1168 KB	Output is correct
79	Correct	27 ms	2024 KB	Output is correct
80	Correct	50 ms	2092 KB	Output is correct
81	Correct	45 ms	2040 KB	Output is correct
82	Correct	45 ms	2184 KB	Output is correct
83	Correct	9 ms	720 KB	Output is correct
84	Correct	38 ms	2084 KB	Output is correct
85	Correct	41 ms	2112 KB	Output is correct
86	Correct	4 ms	520 KB	Output is correct
87	Correct	5 ms	584 KB	Output is correct
88	Correct	8 ms	556 KB	Output is correct
89	Correct	7 ms	512 KB	Output is correct
90	Correct	8 ms	592 KB	Output is correct
91	Correct	5 ms	592 KB	Output is correct
92	Correct	7 ms	584 KB	Output is correct
93	Correct	11 ms	840 KB	Output is correct
94	Correct	10 ms	1004 KB	Output is correct
95	Correct	8 ms	976 KB	Output is correct
96	Correct	10 ms	848 KB	Output is correct
97	Correct	8 ms	816 KB	Output is correct