답안 #61563

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
61563 2018-07-26T07:36:03 Z zadrga 커다란 상품 (IOI17_prize) C++14
90 / 100
115 ms 5768 KB
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF (1 << 30)
#define MOD (1000 * 1000 * 1000 + 7)
#define maxn 201111
#define SQRT 450
#define BUCKET 5000

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

int max_val;
int ans;
bool used[maxn];
vector<int> v[maxn];

vector<int> ASK(int x){
	if(!used[x]){
		v[x] = ask(x);
		used[x] = 1;
	}
	return v[x];
}

void solve(int L, int D){
	if(ans != -1 || L > D)
		return;

	int l = -1, d = -1;
	vector<int> left, right;
	for(int i = L; i <= D; i++){
		left = ASK(i);

		if(left[0] + left[1] == 0){
			ans = i;
			return;
		}

		if(left[0] + left[1] == max_val){
			l = i;
			break;
		}
	}

	if(l == -1)
		return;

	for(int i = D; i > l; i--){
		right = ASK(i);

		if(right[0] + right[1] == 0){
			ans = i;
			return;
		}

		if(right[0] + right[1] == max_val){
			d = i;
			break;
		}
	}
	if(d == -1)
		return;

	int num = left[1] - right[1];
	if(num == 0)
		return;

	int mid = (l + d) / 2;
	solve(l, mid);
	solve(mid + 1, d);
}

int find_best(int n){
	max_val = -1;
	for(int i = 0; i < min(SQRT + 50, n); i++){
		vector<int> ret = ASK(i);
		max_val = max(max_val, ret[0] + ret[1]);
	}

	ans = -1;
	for(int i = 0; i < maxn / BUCKET + 1; i++){
		int l = i * BUCKET;
		solve(l, min(n - 1, l + BUCKET - 1));
	}
	return ans;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 4988 KB Output is correct
2 Correct 15 ms 5200 KB Output is correct
3 Correct 18 ms 5212 KB Output is correct
4 Correct 18 ms 5300 KB Output is correct
5 Correct 18 ms 5300 KB Output is correct
6 Correct 16 ms 5300 KB Output is correct
7 Correct 15 ms 5336 KB Output is correct
8 Correct 13 ms 5336 KB Output is correct
9 Correct 17 ms 5336 KB Output is correct
10 Correct 13 ms 5436 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 5436 KB Output is correct
2 Correct 14 ms 5436 KB Output is correct
3 Correct 14 ms 5436 KB Output is correct
4 Correct 19 ms 5436 KB Output is correct
5 Correct 16 ms 5436 KB Output is correct
6 Correct 16 ms 5436 KB Output is correct
7 Correct 14 ms 5436 KB Output is correct
8 Correct 14 ms 5436 KB Output is correct
9 Correct 18 ms 5436 KB Output is correct
10 Correct 12 ms 5436 KB Output is correct
11 Correct 17 ms 5436 KB Output is correct
12 Correct 15 ms 5436 KB Output is correct
13 Correct 22 ms 5436 KB Output is correct
14 Correct 16 ms 5436 KB Output is correct
15 Correct 16 ms 5436 KB Output is correct
16 Partially correct 39 ms 5660 KB Partially correct - number of queries: 6703
17 Correct 12 ms 5660 KB Output is correct
18 Partially correct 94 ms 5696 KB Partially correct - number of queries: 7974
19 Correct 15 ms 5696 KB Output is correct
20 Correct 41 ms 5696 KB Output is correct
21 Correct 27 ms 5696 KB Output is correct
22 Correct 24 ms 5696 KB Output is correct
23 Correct 17 ms 5696 KB Output is correct
24 Correct 17 ms 5696 KB Output is correct
25 Correct 65 ms 5696 KB Output is correct
26 Correct 54 ms 5696 KB Output is correct
27 Correct 13 ms 5696 KB Output is correct
28 Partially correct 76 ms 5696 KB Partially correct - number of queries: 6876
29 Partially correct 94 ms 5696 KB Partially correct - number of queries: 5479
30 Partially correct 115 ms 5696 KB Partially correct - number of queries: 7944
31 Correct 16 ms 5696 KB Output is correct
32 Correct 19 ms 5696 KB Output is correct
33 Correct 7 ms 5696 KB Output is correct
34 Correct 43 ms 5696 KB Output is correct
35 Correct 19 ms 5696 KB Output is correct
36 Correct 34 ms 5696 KB Output is correct
37 Correct 16 ms 5696 KB Output is correct
38 Correct 14 ms 5696 KB Output is correct
39 Correct 60 ms 5696 KB Output is correct
40 Partially correct 71 ms 5704 KB Partially correct - number of queries: 7053
41 Correct 31 ms 5704 KB Output is correct
42 Correct 56 ms 5704 KB Output is correct
43 Correct 48 ms 5704 KB Output is correct
44 Correct 25 ms 5704 KB Output is correct
45 Correct 31 ms 5704 KB Output is correct
46 Correct 13 ms 5704 KB Output is correct
47 Correct 45 ms 5704 KB Output is correct
48 Partially correct 70 ms 5704 KB Partially correct - number of queries: 5828
49 Correct 17 ms 5704 KB Output is correct
50 Partially correct 103 ms 5704 KB Partially correct - number of queries: 7969
51 Correct 26 ms 5704 KB Output is correct
52 Correct 15 ms 5704 KB Output is correct
53 Correct 14 ms 5704 KB Output is correct
54 Correct 50 ms 5704 KB Output is correct
55 Correct 13 ms 5704 KB Output is correct
56 Partially correct 102 ms 5704 KB Partially correct - number of queries: 7957
57 Partially correct 51 ms 5704 KB Partially correct - number of queries: 5744
58 Partially correct 80 ms 5704 KB Partially correct - number of queries: 5751
59 Correct 70 ms 5704 KB Output is correct
60 Correct 56 ms 5704 KB Output is correct
61 Correct 16 ms 5704 KB Output is correct
62 Correct 14 ms 5704 KB Output is correct
63 Correct 12 ms 5704 KB Output is correct
64 Correct 14 ms 5704 KB Output is correct
65 Correct 12 ms 5704 KB Output is correct
66 Correct 11 ms 5704 KB Output is correct
67 Correct 13 ms 5704 KB Output is correct
68 Correct 10 ms 5704 KB Output is correct
69 Correct 13 ms 5704 KB Output is correct
70 Correct 12 ms 5704 KB Output is correct
71 Partially correct 115 ms 5704 KB Partially correct - number of queries: 8385
72 Correct 27 ms 5704 KB Output is correct
73 Partially correct 90 ms 5704 KB Partially correct - number of queries: 8287
74 Partially correct 87 ms 5704 KB Partially correct - number of queries: 8329
75 Correct 12 ms 5704 KB Output is correct
76 Partially correct 73 ms 5704 KB Partially correct - number of queries: 7377
77 Partially correct 72 ms 5704 KB Partially correct - number of queries: 7529
78 Correct 25 ms 5704 KB Output is correct
79 Correct 40 ms 5704 KB Output is correct
80 Partially correct 71 ms 5756 KB Partially correct - number of queries: 7516
81 Partially correct 59 ms 5768 KB Partially correct - number of queries: 7623
82 Partially correct 80 ms 5768 KB Partially correct - number of queries: 7441
83 Correct 17 ms 5768 KB Output is correct
84 Partially correct 84 ms 5768 KB Partially correct - number of queries: 6493
85 Partially correct 74 ms 5768 KB Partially correct - number of queries: 7537
86 Correct 11 ms 5768 KB Output is correct
87 Correct 13 ms 5768 KB Output is correct
88 Correct 16 ms 5768 KB Output is correct
89 Correct 11 ms 5768 KB Output is correct
90 Correct 9 ms 5768 KB Output is correct
91 Correct 18 ms 5768 KB Output is correct
92 Correct 15 ms 5768 KB Output is correct
93 Correct 15 ms 5768 KB Output is correct
94 Correct 19 ms 5768 KB Output is correct
95 Correct 16 ms 5768 KB Output is correct
96 Correct 18 ms 5768 KB Output is correct
97 Correct 19 ms 5768 KB Output is correct