답안 #137889

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
137889	2019-07-28T13:26:06 Z	MAMBA	커다란 상품 (IOI17_prize)	C++14	97.92 / 100	61 ms	936 KB

prize

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

using namespace std;

#define rep(i, j, k) for (int i = j; i < (int)k; i++)

typedef vector<int> vi;

inline bool smax(int &a, int b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}

inline bool smin(int &a, int b) {
  if (b < a) {
    a = b;
    return true;
  }
  return false;
}

inline int sum(vi me) { return me[0] + me[1]; }

int mx;
map<int, vi> mp;
inline vi gholi(int v) {
  if (mp.count(v)) return mp[v];
  assert(mp.size() + 1 <= 10000);
  mp[v] = ask(v);
  smax(mx, sum(mp[v]));
  return mp[v];
}

int N;

int solve(int l, int r, int le, int ri) {
  assert(l >= 0 && r <= N);
  if (l >= r || le + ri == mx) return -1;
  int mid = l + r >> 1;
  rep(i, mid, r) {
    vi me = gholi(i);
    if (sum(me) == 0) return i;
    if (sum(me) == mx) {
      int res = solve(l, mid, le, me[1] + (i - mid));
      if (~res) return res;
      return solve(i + 1, r, me[0], ri);
    }
  }
  return solve(l, mid, le, r - mid + ri);
}

int find_best(int n) {
  N = n;
  mp.clear();
  mx = -1;
  rep(i, 0, min(n, 450)) {
    smax(mx, sum(gholi(i)));
    if (sum(gholi(i)) == 0) return i;
  }

  int me = solve(0, n, 0, 0);
  assert(~me);
  return me;
}

Compilation message

prize.cpp: In function 'int solve(int, int, int, int)':
prize.cpp:43:15: 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	248 KB	Output is correct
2	Correct	6 ms	376 KB	Output is correct
3	Correct	7 ms	376 KB	Output is correct
4	Correct	6 ms	376 KB	Output is correct
5	Correct	8 ms	248 KB	Output is correct
6	Correct	2 ms	248 KB	Output is correct
7	Correct	6 ms	248 KB	Output is correct
8	Correct	6 ms	248 KB	Output is correct
9	Correct	5 ms	428 KB	Output is correct
10	Correct	6 ms	248 KB	Output is correct

Subtask #2

77.92 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	248 KB	Output is correct
2	Correct	5 ms	424 KB	Output is correct
3	Correct	6 ms	376 KB	Output is correct
4	Correct	7 ms	248 KB	Output is correct
5	Correct	4 ms	412 KB	Output is correct
6	Correct	2 ms	248 KB	Output is correct
7	Correct	6 ms	396 KB	Output is correct
8	Correct	7 ms	248 KB	Output is correct
9	Correct	7 ms	248 KB	Output is correct
10	Correct	7 ms	376 KB	Output is correct
11	Correct	6 ms	440 KB	Output is correct
12	Correct	5 ms	540 KB	Output is correct
13	Correct	12 ms	308 KB	Output is correct
14	Correct	8 ms	328 KB	Output is correct
15	Correct	12 ms	528 KB	Output is correct
16	Correct	27 ms	768 KB	Output is correct
17	Correct	7 ms	248 KB	Output is correct
18	Correct	54 ms	720 KB	Output is correct
19	Correct	7 ms	248 KB	Output is correct
20	Correct	11 ms	504 KB	Output is correct
21	Correct	23 ms	496 KB	Output is correct
22	Correct	10 ms	376 KB	Output is correct
23	Correct	8 ms	248 KB	Output is correct
24	Correct	7 ms	376 KB	Output is correct
25	Correct	28 ms	592 KB	Output is correct
26	Correct	25 ms	544 KB	Output is correct
27	Correct	7 ms	376 KB	Output is correct
28	Correct	32 ms	764 KB	Output is correct
29	Correct	38 ms	632 KB	Output is correct
30	Correct	57 ms	792 KB	Output is correct
31	Correct	8 ms	392 KB	Output is correct
32	Correct	11 ms	376 KB	Output is correct
33	Correct	2 ms	248 KB	Output is correct
34	Correct	18 ms	492 KB	Output is correct
35	Correct	7 ms	376 KB	Output is correct
36	Correct	11 ms	516 KB	Output is correct
37	Correct	5 ms	492 KB	Output is correct
38	Correct	7 ms	248 KB	Output is correct
39	Correct	26 ms	504 KB	Output is correct
40	Correct	45 ms	704 KB	Output is correct
41	Correct	36 ms	584 KB	Output is correct
42	Correct	32 ms	560 KB	Output is correct
43	Correct	18 ms	584 KB	Output is correct
44	Correct	24 ms	432 KB	Output is correct
45	Correct	22 ms	432 KB	Output is correct
46	Correct	5 ms	248 KB	Output is correct
47	Correct	26 ms	436 KB	Output is correct
48	Correct	40 ms	596 KB	Output is correct
49	Correct	14 ms	388 KB	Output is correct
50	Correct	55 ms	760 KB	Output is correct
51	Correct	25 ms	504 KB	Output is correct
52	Correct	7 ms	352 KB	Output is correct
53	Correct	5 ms	456 KB	Output is correct
54	Correct	24 ms	504 KB	Output is correct
55	Correct	4 ms	428 KB	Output is correct
56	Correct	41 ms	824 KB	Output is correct
57	Correct	23 ms	656 KB	Output is correct
58	Correct	37 ms	632 KB	Output is correct
59	Correct	27 ms	624 KB	Output is correct
60	Correct	35 ms	504 KB	Output is correct
61	Correct	8 ms	276 KB	Output is correct
62	Correct	4 ms	340 KB	Output is correct
63	Correct	9 ms	376 KB	Output is correct
64	Correct	7 ms	248 KB	Output is correct
65	Correct	5 ms	348 KB	Output is correct
66	Correct	11 ms	296 KB	Output is correct
67	Correct	11 ms	360 KB	Output is correct
68	Correct	7 ms	392 KB	Output is correct
69	Correct	12 ms	304 KB	Output is correct
70	Correct	9 ms	384 KB	Output is correct
71	Partially correct	61 ms	880 KB	Partially correct - number of queries: 5208
72	Correct	12 ms	376 KB	Output is correct
73	Partially correct	43 ms	884 KB	Partially correct - number of queries: 5145
74	Partially correct	59 ms	936 KB	Partially correct - number of queries: 5172
75	Correct	5 ms	376 KB	Output is correct
76	Correct	52 ms	808 KB	Output is correct
77	Correct	60 ms	824 KB	Output is correct
78	Correct	13 ms	296 KB	Output is correct
79	Correct	30 ms	564 KB	Output is correct
80	Correct	35 ms	816 KB	Output is correct
81	Correct	49 ms	764 KB	Output is correct
82	Correct	51 ms	812 KB	Output is correct
83	Correct	9 ms	376 KB	Output is correct
84	Correct	29 ms	768 KB	Output is correct
85	Correct	50 ms	760 KB	Output is correct
86	Correct	5 ms	312 KB	Output is correct
87	Correct	7 ms	248 KB	Output is correct
88	Correct	9 ms	248 KB	Output is correct
89	Correct	6 ms	248 KB	Output is correct
90	Correct	8 ms	360 KB	Output is correct
91	Correct	6 ms	248 KB	Output is correct
92	Correct	7 ms	348 KB	Output is correct
93	Correct	11 ms	380 KB	Output is correct
94	Correct	13 ms	376 KB	Output is correct
95	Correct	11 ms	376 KB	Output is correct
96	Correct	9 ms	376 KB	Output is correct
97	Correct	6 ms	252 KB	Output is correct