답안 #1006239

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1006239 2024-06-23T15:12:39 Z thinknoexit 버섯 세기 (IOI20_mushrooms) C++17
88.2812 / 100
5 ms 600 KB
#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int n;
int count_mushrooms(int N) {
	n = N;
	if (n <= 900) {
		vector<int> A, B;
		A.push_back(0);
		int p;
		for (p = 2;p < n;p += 2) {
			if (A.size() < 2 && B.size() < 2) {
				int v = use_machine({ p - 1, 0, p });
				if (v == 0) {
					A.push_back(p);
					A.push_back(p - 1);
				}
				else if (v == 2) {
					B.push_back(p);
					B.push_back(p - 1);
				}
				else {
					if (use_machine({ 0, p })) B.push_back(p), A.push_back(p - 1);
					else B.push_back(p - 1), A.push_back(p);
				}
			}
			else if (A.size() >= 2) {
				int v = use_machine({ A[0], p - 1, A[1], p });
				if (v & 1) B.push_back(p);
				else A.push_back(p);
				if (v & 2) B.push_back(p - 1);
				else A.push_back(p - 1);
			}
			else {
				int v = use_machine({ B[0], p - 1, B[1], p });
				if (!(v & 1)) B.push_back(p);
				else A.push_back(p);
				if (!(v & 2)) B.push_back(p - 1);
				else A.push_back(p - 1);
			}
		}
		p--;
		if (p == n - 1) {
			if (use_machine({ 0, p })) B.push_back(p);
			else A.push_back(p);
		}
		return (int)A.size();
	}
	int sq = 282;
	vector<int> A, B;
	A.push_back(0);
	int p;
	for (p = 2;p < sq;p += 2) {
		if (A.size() < 2 && B.size() < 2) {
			int v = use_machine({ p - 1, 0, p });
			if (v == 0) {
				A.push_back(p);
				A.push_back(p - 1);
			}
			else if (v == 2) {
				B.push_back(p);
				B.push_back(p - 1);
			}
			else {
				if (use_machine({ 0, p })) B.push_back(p), A.push_back(p - 1);
				else B.push_back(p - 1), A.push_back(p);
			}
		}
		else if (A.size() >= 2) {
			int v = use_machine({ A[0], p - 1, A[1], p });
			if (v & 1) B.push_back(p);
			else A.push_back(p);
			if (v & 2) B.push_back(p - 1);
			else A.push_back(p - 1);
		}
		else {
			int v = use_machine({ B[0], p - 1, B[1], p });
			if (!(v & 1)) B.push_back(p);
			else A.push_back(p);
			if (!(v & 2)) B.push_back(p - 1);
			else A.push_back(p - 1);
		}
	}
	p--;
	// count A from p -> n - 1
	int ans = A.size();
	while (p < n) {
		int j;
		if (A.size() > B.size()) {
			int sz = A.size();
			vector<int> Q;
			for (j = p;j < min(n, p + sz);j++) {
				Q.push_back(j);
				Q.push_back(A[j - p]);
			}
			int v = use_machine(Q);
			int s = Q.size();
			ans += (s - v) / 2;
			if (!(v & 1)) A.push_back(p);
			else B.push_back(p);
		}
		else {
			int sz = B.size();
			vector<int> Q;
			for (j = p;j < min(n, p + sz);j++) {
				Q.push_back(j);
				Q.push_back(B[j - p]);
			}
			int v = use_machine(Q);
			ans += (v + 1) / 2;
			if (v & 1) A.push_back(p);
			else B.push_back(p);
		}
		p = j;
	}
	return ans;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 3 ms 344 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Partially correct 3 ms 356 KB Output is partially correct
11 Partially correct 3 ms 344 KB Output is partially correct
12 Partially correct 5 ms 600 KB Output is partially correct
13 Correct 2 ms 344 KB Output is correct
14 Correct 2 ms 412 KB Output is correct
15 Partially correct 3 ms 344 KB Output is partially correct
16 Partially correct 3 ms 344 KB Output is partially correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 3 ms 340 KB Output is correct
19 Partially correct 4 ms 344 KB Output is partially correct
20 Partially correct 3 ms 344 KB Output is partially correct
21 Partially correct 3 ms 344 KB Output is partially correct
22 Partially correct 3 ms 344 KB Output is partially correct
23 Correct 3 ms 452 KB Output is correct
24 Correct 2 ms 344 KB Output is correct
25 Partially correct 3 ms 344 KB Output is partially correct
26 Partially correct 3 ms 344 KB Output is partially correct
27 Partially correct 4 ms 344 KB Output is partially correct
28 Partially correct 3 ms 344 KB Output is partially correct
29 Partially correct 3 ms 344 KB Output is partially correct
30 Partially correct 3 ms 344 KB Output is partially correct
31 Partially correct 3 ms 344 KB Output is partially correct
32 Partially correct 3 ms 344 KB Output is partially correct
33 Partially correct 5 ms 344 KB Output is partially correct
34 Partially correct 4 ms 344 KB Output is partially correct
35 Partially correct 4 ms 344 KB Output is partially correct
36 Partially correct 3 ms 344 KB Output is partially correct
37 Partially correct 5 ms 344 KB Output is partially correct
38 Partially correct 3 ms 344 KB Output is partially correct
39 Partially correct 3 ms 600 KB Output is partially correct
40 Partially correct 5 ms 344 KB Output is partially correct
41 Partially correct 3 ms 344 KB Output is partially correct
42 Partially correct 5 ms 344 KB Output is partially correct
43 Partially correct 3 ms 344 KB Output is partially correct
44 Partially correct 3 ms 344 KB Output is partially correct
45 Partially correct 5 ms 344 KB Output is partially correct
46 Partially correct 4 ms 344 KB Output is partially correct
47 Partially correct 3 ms 344 KB Output is partially correct
48 Partially correct 4 ms 344 KB Output is partially correct
49 Partially correct 4 ms 344 KB Output is partially correct
50 Partially correct 3 ms 344 KB Output is partially correct
51 Partially correct 4 ms 344 KB Output is partially correct
52 Partially correct 4 ms 344 KB Output is partially correct
53 Partially correct 4 ms 344 KB Output is partially correct
54 Partially correct 5 ms 344 KB Output is partially correct
55 Partially correct 3 ms 344 KB Output is partially correct
56 Partially correct 3 ms 344 KB Output is partially correct
57 Partially correct 3 ms 344 KB Output is partially correct
58 Partially correct 3 ms 344 KB Output is partially correct
59 Partially correct 3 ms 344 KB Output is partially correct
60 Partially correct 3 ms 444 KB Output is partially correct
61 Partially correct 3 ms 344 KB Output is partially correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 0 ms 344 KB Output is correct
68 Correct 0 ms 344 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 0 ms 344 KB Output is correct
73 Correct 1 ms 340 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 344 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 0 ms 344 KB Output is correct
85 Correct 0 ms 344 KB Output is correct
86 Correct 0 ms 344 KB Output is correct
87 Correct 0 ms 344 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct