답안 #147494

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
147494	2019-08-29T18:35:55 Z	RafaelSus	커다란 상품 (IOI17_prize)	C++17	95.63 / 100	60 ms	504 KB

prize

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

using namespace std;

int mx = -1;
int answ = -1;

int N;

int bSearch(int l, int r, int L, int R){
  l = max(l, 0);
  r = min(r, N);
  if (l >= r) return -1;
  if (L + R == mx) return -1;
  int mid = l + r >> 1;

  for (int i = mid; i < r; i++){
    vector <int> a = ask(i);
    if (a[0] + a[1] == mx){
      int x = bSearch(l, mid, L, a[1] + (mid - i));
      if (x != -1) return x;
      x = bSearch(i + 1, r, a[0], R);
      if (x != -1) return x;
      return -1;
    }else if (a[0] + a[1] == 0){
      return i;
    }
  }
  return bSearch(l, mid, L, R + (r - mid));
}


int find_best(int n){
  N = n;
  for (int i = 0; i < 500; i++){
    vector <int> a = ask(i);
    if (a[0] + a[1] == 0){
      return i;
    }
    mx = max(a[0] + a[1], mx);
  }
  return bSearch(0, n, 0, 0);
}

Compilation message

prize.cpp: In function 'int bSearch(int, int, int, int)':
prize.cpp:16:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = l + r >> 1;
             ~~^~~

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	388 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	4 ms	504 KB	Output is correct
4	Correct	7 ms	380 KB	Output is correct
5	Correct	7 ms	376 KB	Output is correct
6	Correct	2 ms	440 KB	Output is correct
7	Correct	4 ms	392 KB	Output is correct
8	Correct	9 ms	248 KB	Output is correct
9	Correct	7 ms	376 KB	Output is correct
10	Correct	8 ms	376 KB	Output is correct

Subtask #2

75.63 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	248 KB	Output is correct
2	Correct	5 ms	424 KB	Output is correct
3	Correct	4 ms	376 KB	Output is correct
4	Correct	8 ms	404 KB	Output is correct
5	Correct	9 ms	388 KB	Output is correct
6	Correct	2 ms	500 KB	Output is correct
7	Correct	8 ms	276 KB	Output is correct
8	Correct	6 ms	308 KB	Output is correct
9	Correct	5 ms	504 KB	Output is correct
10	Correct	6 ms	248 KB	Output is correct
11	Correct	11 ms	296 KB	Output is correct
12	Correct	4 ms	376 KB	Output is correct
13	Correct	13 ms	420 KB	Output is correct
14	Correct	9 ms	248 KB	Output is correct
15	Correct	15 ms	292 KB	Output is correct
16	Correct	50 ms	268 KB	Output is correct
17	Correct	7 ms	248 KB	Output is correct
18	Partially correct	49 ms	276 KB	Partially correct - number of queries: 5138
19	Correct	6 ms	308 KB	Output is correct
20	Correct	16 ms	248 KB	Output is correct
21	Correct	25 ms	244 KB	Output is correct
22	Correct	7 ms	316 KB	Output is correct
23	Correct	8 ms	248 KB	Output is correct
24	Correct	6 ms	280 KB	Output is correct
25	Correct	16 ms	312 KB	Output is correct
26	Correct	27 ms	248 KB	Output is correct
27	Correct	5 ms	248 KB	Output is correct
28	Correct	50 ms	248 KB	Output is correct
29	Correct	21 ms	388 KB	Output is correct
30	Partially correct	53 ms	420 KB	Partially correct - number of queries: 5095
31	Correct	4 ms	396 KB	Output is correct
32	Correct	6 ms	308 KB	Output is correct
33	Correct	2 ms	248 KB	Output is correct
34	Correct	23 ms	376 KB	Output is correct
35	Correct	5 ms	376 KB	Output is correct
36	Correct	10 ms	396 KB	Output is correct
37	Correct	8 ms	248 KB	Output is correct
38	Correct	6 ms	248 KB	Output is correct
39	Correct	15 ms	504 KB	Output is correct
40	Correct	44 ms	248 KB	Output is correct
41	Correct	31 ms	248 KB	Output is correct
42	Correct	36 ms	248 KB	Output is correct
43	Correct	28 ms	376 KB	Output is correct
44	Correct	14 ms	316 KB	Output is correct
45	Correct	11 ms	392 KB	Output is correct
46	Correct	7 ms	248 KB	Output is correct
47	Correct	15 ms	308 KB	Output is correct
48	Correct	37 ms	304 KB	Output is correct
49	Correct	13 ms	392 KB	Output is correct
50	Partially correct	29 ms	376 KB	Partially correct - number of queries: 5117
51	Correct	14 ms	424 KB	Output is correct
52	Correct	7 ms	376 KB	Output is correct
53	Correct	5 ms	376 KB	Output is correct
54	Correct	24 ms	376 KB	Output is correct
55	Correct	6 ms	276 KB	Output is correct
56	Partially correct	51 ms	312 KB	Partially correct - number of queries: 5117
57	Correct	37 ms	276 KB	Output is correct
58	Correct	34 ms	376 KB	Output is correct
59	Correct	31 ms	308 KB	Output is correct
60	Correct	31 ms	424 KB	Output is correct
61	Correct	9 ms	324 KB	Output is correct
62	Correct	7 ms	420 KB	Output is correct
63	Correct	8 ms	248 KB	Output is correct
64	Correct	8 ms	392 KB	Output is correct
65	Correct	5 ms	324 KB	Output is correct
66	Correct	11 ms	248 KB	Output is correct
67	Correct	13 ms	304 KB	Output is correct
68	Correct	4 ms	388 KB	Output is correct
69	Correct	6 ms	396 KB	Output is correct
70	Correct	11 ms	308 KB	Output is correct
71	Partially correct	51 ms	296 KB	Partially correct - number of queries: 5259
72	Correct	11 ms	248 KB	Output is correct
73	Partially correct	60 ms	248 KB	Partially correct - number of queries: 5196
74	Partially correct	33 ms	248 KB	Partially correct - number of queries: 5223
75	Correct	9 ms	248 KB	Output is correct
76	Correct	42 ms	248 KB	Output is correct
77	Partially correct	31 ms	308 KB	Partially correct - number of queries: 5437
78	Correct	7 ms	376 KB	Output is correct
79	Correct	21 ms	376 KB	Output is correct
80	Partially correct	32 ms	376 KB	Partially correct - number of queries: 5426
81	Partially correct	45 ms	388 KB	Partially correct - number of queries: 5414
82	Partially correct	57 ms	376 KB	Partially correct - number of queries: 5380
83	Correct	9 ms	248 KB	Output is correct
84	Correct	47 ms	248 KB	Output is correct
85	Partially correct	58 ms	248 KB	Partially correct - number of queries: 5429
86	Correct	10 ms	248 KB	Output is correct
87	Correct	5 ms	308 KB	Output is correct
88	Correct	12 ms	248 KB	Output is correct
89	Correct	14 ms	248 KB	Output is correct
90	Correct	9 ms	308 KB	Output is correct
91	Correct	9 ms	304 KB	Output is correct
92	Correct	13 ms	248 KB	Output is correct
93	Correct	14 ms	376 KB	Output is correct
94	Correct	16 ms	248 KB	Output is correct
95	Correct	17 ms	248 KB	Output is correct
96	Correct	17 ms	248 KB	Output is correct
97	Correct	14 ms	376 KB	Output is correct