답안 #697549

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
697549 2023-02-10T10:06:58 Z garam1732 버섯 세기 (IOI20_mushrooms) C++14
100 / 100
13 ms 328 KB
#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> a, b;
int cnt = 106;

int count_mushrooms(int n) {
    a.push_back(0);

	if(n < 2*cnt+5) {
        for(int i = 1; i < n; i++)
            use_machine({0, i}) ? b.push_back(i) : a.push_back(i);

        return a.size();
	}

	use_machine({0, 1}) ? b.push_back(1) : a.push_back(1);
    use_machine({0, 2}) ? b.push_back(2) : a.push_back(2);

    if(a.size() > 1) {
        int x = use_machine({a[0], 3, a[1], 4});
        (x&1) ? b.push_back(4) : a.push_back(4);
        (x&2) ? b.push_back(3) : a.push_back(3);
    }
    else {
        int x = use_machine({b[0], 3, b[1], 4});
        (x&1) ? a.push_back(4) : b.push_back(4);
        (x&2) ? a.push_back(3) : b.push_back(3);
    }

	int idx = 5; bool flag = false;
	if(a.size() < 3) flag = true;
	if(flag) swap(a, b);
    while(idx <= 2*cnt) {
        int x = use_machine({a[0], idx, a[1], idx+1, a[2], idx+2});
        (x&1) ? b.push_back(idx+2) : a.push_back(idx+2);

        if(x/2 == 0) {
            a.push_back(idx);
            a.push_back(idx+1);
            idx += 3;
        }
        else if(x/2 == 2) {
            b.push_back(idx);
            b.push_back(idx+1);
            idx += 3;
        }
        else if(b.size() > 1) {
            int x = use_machine({b[0], idx, b[1], a[0], idx+1, a[1], idx+3, a[2], idx+4})-1;
            (x&1) ? b.push_back(idx+4) : a.push_back(idx+4);
            (x&2) ? b.push_back(idx+3) : a.push_back(idx+3);
            (x&4) ? b.push_back(idx+1) : a.push_back(idx+1);
            (x&4) ? a.push_back(idx) : b.push_back(idx);
            idx += 5;
        }
        else {
            int x = use_machine({a[0], idx, a[1], idx+3});
            (x&1) ? b.push_back(idx+3) : a.push_back(idx+3);
            (x&2) ? b.push_back(idx) : a.push_back(idx);
            (x&2) ? a.push_back(idx+1) : b.push_back(idx+1);
            idx += 4;
        }
    }
	if(flag) swap(a, b);

	if(a.size() + b.size() == n) return a.size();

	std::vector<int> m;
	int res = a.size();
	while(idx < n) {
        if(a.size() > b.size()) {
            int z;
            m.clear();
            for(int i = 0; i < a.size(); i++) {
                if(idx < n) {
                    if(i == 0) z = idx;
                    m.push_back(idx++);
                }
                m.push_back(a[i]);
            }

            int x = use_machine(m);
            res += (int)m.size() - (int)a.size() - (x+1)/2;
            (x&1) ? b.push_back(z) : a.push_back(z);
        }
        else {
            int z;
            m.clear();
            for(int i = 0; i < b.size(); i++) {
                if(idx < n) {
                    if(i == 0) z = idx;
                    m.push_back(idx++);
                }
                m.push_back(b[i]);
            }

            int x = use_machine(m);
            res += (x+1)/2;
            (x&1) ? a.push_back(z) : b.push_back(z);
        }
	}

	return res;
}

Compilation message

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:67:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   67 |  if(a.size() + b.size() == n) return a.size();
      |     ~~~~~~~~~~~~~~~~~~~~^~~~
mushrooms.cpp:75:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |             for(int i = 0; i < a.size(); i++) {
      |                            ~~^~~~~~~~~~
mushrooms.cpp:90:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |             for(int i = 0; i < b.size(); i++) {
      |                            ~~^~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 6 ms 208 KB Output is correct
8 Correct 6 ms 316 KB Output is correct
9 Correct 5 ms 312 KB Output is correct
10 Correct 5 ms 300 KB Output is correct
11 Correct 8 ms 208 KB Output is correct
12 Correct 6 ms 208 KB Output is correct
13 Correct 8 ms 312 KB Output is correct
14 Correct 4 ms 320 KB Output is correct
15 Correct 7 ms 308 KB Output is correct
16 Correct 7 ms 316 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 6 ms 316 KB Output is correct
19 Correct 8 ms 312 KB Output is correct
20 Correct 6 ms 208 KB Output is correct
21 Correct 13 ms 304 KB Output is correct
22 Correct 6 ms 328 KB Output is correct
23 Correct 7 ms 208 KB Output is correct
24 Correct 5 ms 316 KB Output is correct
25 Correct 7 ms 320 KB Output is correct
26 Correct 7 ms 208 KB Output is correct
27 Correct 9 ms 320 KB Output is correct
28 Correct 6 ms 208 KB Output is correct
29 Correct 5 ms 316 KB Output is correct
30 Correct 6 ms 320 KB Output is correct
31 Correct 7 ms 316 KB Output is correct
32 Correct 6 ms 208 KB Output is correct
33 Correct 7 ms 320 KB Output is correct
34 Correct 9 ms 320 KB Output is correct
35 Correct 12 ms 208 KB Output is correct
36 Correct 8 ms 312 KB Output is correct
37 Correct 6 ms 320 KB Output is correct
38 Correct 6 ms 208 KB Output is correct
39 Correct 6 ms 308 KB Output is correct
40 Correct 8 ms 312 KB Output is correct
41 Correct 7 ms 312 KB Output is correct
42 Correct 7 ms 320 KB Output is correct
43 Correct 8 ms 208 KB Output is correct
44 Correct 7 ms 208 KB Output is correct
45 Correct 6 ms 312 KB Output is correct
46 Correct 6 ms 208 KB Output is correct
47 Correct 7 ms 316 KB Output is correct
48 Correct 9 ms 320 KB Output is correct
49 Correct 10 ms 208 KB Output is correct
50 Correct 8 ms 316 KB Output is correct
51 Correct 8 ms 208 KB Output is correct
52 Correct 8 ms 304 KB Output is correct
53 Correct 8 ms 316 KB Output is correct
54 Correct 6 ms 208 KB Output is correct
55 Correct 5 ms 320 KB Output is correct
56 Correct 8 ms 308 KB Output is correct
57 Correct 5 ms 208 KB Output is correct
58 Correct 6 ms 208 KB Output is correct
59 Correct 9 ms 316 KB Output is correct
60 Correct 8 ms 312 KB Output is correct
61 Correct 6 ms 208 KB Output is correct
62 Correct 1 ms 208 KB Output is correct
63 Correct 0 ms 208 KB Output is correct
64 Correct 1 ms 208 KB Output is correct
65 Correct 1 ms 208 KB Output is correct
66 Correct 1 ms 208 KB Output is correct
67 Correct 1 ms 208 KB Output is correct
68 Correct 1 ms 208 KB Output is correct
69 Correct 0 ms 208 KB Output is correct
70 Correct 0 ms 208 KB Output is correct
71 Correct 1 ms 208 KB Output is correct
72 Correct 0 ms 208 KB Output is correct
73 Correct 0 ms 208 KB Output is correct
74 Correct 0 ms 208 KB Output is correct
75 Correct 1 ms 208 KB Output is correct
76 Correct 1 ms 208 KB Output is correct
77 Correct 1 ms 208 KB Output is correct
78 Correct 0 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 1 ms 208 KB Output is correct
81 Correct 1 ms 208 KB Output is correct
82 Correct 1 ms 208 KB Output is correct
83 Correct 0 ms 208 KB Output is correct
84 Correct 0 ms 208 KB Output is correct
85 Correct 1 ms 292 KB Output is correct
86 Correct 0 ms 208 KB Output is correct
87 Correct 1 ms 208 KB Output is correct
88 Correct 0 ms 208 KB Output is correct
89 Correct 0 ms 208 KB Output is correct
90 Correct 0 ms 208 KB Output is correct
91 Correct 0 ms 208 KB Output is correct