oj.uz

답안 #841610

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
841610 2023-09-01T18:31:09 Z andrei_c1 가장 긴 여행 (IOI23_longesttrip) C++17
40 / 100
 9 ms 600 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>

using namespace std;

uint64_t randomAddress() {
	char *p = new char;
	delete p;
	return uint64_t(p);
}
uint64_t SEED = chrono::steady_clock::now().time_since_epoch().count() * (randomAddress() | 1);
// mt19937 rng(SEED);

void concat(vector<int> &t1, vector<int> &t2) {
	if(t1.size() < t2.size()) {
		swap(t1, t2);
	}
	while(!t2.empty()) {
		t1.emplace_back(t2.back());
		t2.pop_back();
	}
}

std::vector<int> longest_trip(int n, int D) {
	srand(SEED);
	vector<int> res, ord(n);
	iota(ord.begin(), ord.end(), 0);
	random_shuffle(ord.begin(), ord.end());
	if(D == 3) {
		for(const auto &u: ord) {
			res.emplace_back(u);
		}
	} else if(D == 2) {
		deque<int> dq;
		dq.emplace_back(ord.back());
		ord.pop_back();
		for(vector<int>::iterator it = ord.begin(); it != ord.end(); it++) {
			if(are_connected({dq.back()}, {*it})) {
				dq.emplace_back(*it);
				ord.erase(it);
				break;
			}
		}
		assert((int) dq.size() == 2);
		for(const auto &u: ord) {
			if(are_connected({u}, {dq.back()})) {
				dq.emplace_back(u);
			} else {
				assert(are_connected({u}, {dq.front()}));
				dq.emplace_front(u);
			}
		}
		for(const auto &u: dq) {
			res.emplace_back(u);
		}
	} else {
		vector<int> t1, t2;
		t1.emplace_back(ord.back());
		ord.pop_back();
		t2.emplace_back(ord.back());
		ord.pop_back();
		for(const auto &u: ord) {
			if(are_connected({u}, {t1.back()})) {
				t1.emplace_back(u);
			} else if(are_connected({u}, {t2.back()})) {
				t2.emplace_back(u);
			} else {
				concat(t1, t2);
				t2.emplace_back(u);
			}
		}
		if(t1.size() < t2.size()) {
			swap(t1, t2);
		}
		for(const auto &u: t1) {
			res.emplace_back(u);
		}
	}
	return res;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 4 ms 600 KB Output is correct
6 Correct 9 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 6 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 5 ms 344 KB Output is correct
13 Correct 4 ms 596 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 4 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 4 ms 344 KB Output is correct
6 Correct 5 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 4 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 6 ms 344 KB Output is correct
16 Correct 6 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 5 ms 344 KB Output is correct
22 Correct 5 ms 344 KB Output is correct
23 Correct 5 ms 600 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 5 ms 344 KB Output is correct
26 Correct 5 ms 344 KB Output is correct
27 Correct 5 ms 344 KB Output is correct
28 Correct 5 ms 344 KB Output is correct
29 Correct 6 ms 344 KB Output is correct
30 Correct 4 ms 344 KB Output is correct
31 Correct 6 ms 344 KB Output is correct
32 Correct 6 ms 344 KB Output is correct
33 Correct 4 ms 344 KB Output is correct
34 Correct 5 ms 344 KB Output is correct
35 Correct 5 ms 344 KB Output is correct
36 Correct 4 ms 344 KB Output is correct
37 Correct 5 ms 344 KB Output is correct
38 Correct 5 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 7 ms 344 KB Output is correct
41 Correct 7 ms 344 KB Output is correct
42 Correct 7 ms 344 KB Output is correct
43 Correct 6 ms 344 KB Output is correct
44 Correct 6 ms 344 KB Output is correct
45 Correct 6 ms 344 KB Output is correct
46 Correct 8 ms 344 KB Output is correct
47 Correct 7 ms 344 KB Output is correct
48 Correct 7 ms 344 KB Output is correct
49 Correct 5 ms 344 KB Output is correct
50 Correct 5 ms 344 KB Output is correct
51 Correct 5 ms 344 KB Output is correct
52 Correct 7 ms 344 KB Output is correct
53 Correct 5 ms 344 KB Output is correct
54 Correct 4 ms 344 KB Output is correct
55 Correct 6 ms 600 KB Output is correct
56 Correct 4 ms 344 KB Output is correct
57 Correct 4 ms 344 KB Output is correct
58 Correct 6 ms 344 KB Output is correct
59 Correct 6 ms 344 KB Output is correct
60 Correct 8 ms 344 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 7 ms 344 KB Output is correct
63 Correct 7 ms 344 KB Output is correct
64 Correct 8 ms 344 KB Output is correct

Subtask #4
0.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -