oj.uz

답안 #1063993

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1063993 2024-08-18T07:30:52 Z AmirAli_H1 가장 긴 여행 (IOI23_longesttrip) C++17
40 / 100
 11 ms 600 KB 
// In the name of Allah

#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;

typedef			long long				ll;
typedef			pair<int, int>			pii;
typedef			pair<ll, ll>			pll;

#define			F						first
#define			S						second
#define			endl					'\n'
#define			sep						' '
#define			pb						push_back
#define			Mp						make_pair
#define			all(x)					(x).begin(),(x).end()
#define			len(x)					((ll) (x).size())

const int maxn = 600 + 7;

int n, d;
bool mark[maxn];
vector<int> res, resx;
vector<int> ls[maxn], vc;

void merge(int i, int j) {
	for (int x : ls[j]) ls[i].pb(x);
	ls[j].clear(); ls[j].shrink_to_fit();
}

pii get_res(int l, int r) {
	if (r - l <= 1) return Mp(l, l);
	int mid = (l + r) / 2;
	pii f1 = get_res(l, mid), f2 = get_res(mid, r);
	
	vc.clear();
	vc.pb(f1.F); vc.pb(f1.S); vc.pb(f2.F); vc.pb(f2.S);
	sort(all(vc)); vc.resize(unique(all(vc)) - vc.begin());
	while (len(vc) > 2) {
		int j1 = vc.back(); vc.pop_back();
		int j2 = vc.back(); vc.pop_back();
		int j3 = vc.back(); vc.pop_back();
		
		if (are_connected({ls[j1].back()}, {ls[j3][0]})) {
			merge(j1, j3);
			vc.pb(j1); vc.pb(j2);
		}
		else if (are_connected({ls[j2].back()}, {ls[j3][0]})) {
			merge(j2, j3);
			vc.pb(j1); vc.pb(j2);
		}
		else {
			reverse(all(ls[j2]));
			merge(j1, j2);
			vc.pb(j1); vc.pb(j3);
		}
	}
	
	return Mp(vc[0], vc[1]);
}

vector<int> longest_trip(int N, int D) {
	n = N; d = D;
	fill(mark, mark + n, 0);
	res.clear(); resx.clear();
	for (int i = 0; i < n; i++) {
		ls[i].clear(); ls[i].pb(i);
	}
	
	if (d >= 2) {
		if (are_connected({0}, {1})) {
			res.pb(0); mark[0] = 1;
			res.pb(1); mark[1] = 1;
		}
		else {
			res.pb(0); mark[0] = 1;
			res.pb(2); mark[2] = 1;
		}
		for (int i = 0; i < n; i++) {
			if (mark[i]) continue;
			if (are_connected({i}, {res.back()})) res.pb(i);
			else {
				resx.clear(); swap(res, resx);
				res.pb(i);
				for (int x : resx) res.pb(x);
			}
			mark[i] = 1;
		}
	}
	else {
		pii f = get_res(0, n);
		if (len(ls[f.F]) > len(ls[f.S])) res = ls[f.F];
		else res = ls[f.S];
	}
	return res;
}

Subtask #0
0.0 / 0.0

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

Subtask #1
5.0 / 5.0

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

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 344 KB Output is correct
2 Correct 7 ms 344 KB Output is correct
3 Correct 6 ms 344 KB Output is correct
4 Correct 6 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct
6 Correct 5 ms 344 KB Output is correct
7 Correct 7 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 5 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 6 ms 460 KB Output is correct
13 Correct 4 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 6 ms 600 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 4 ms 344 KB Output is correct
10 Correct 5 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 7 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 7 ms 344 KB Output is correct
17 Correct 7 ms 344 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 6 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 6 ms 340 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 6 ms 460 KB Output is correct
25 Correct 5 ms 344 KB Output is correct
26 Correct 7 ms 344 KB Output is correct
27 Correct 9 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 5 ms 356 KB Output is correct
31 Correct 7 ms 344 KB Output is correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 6 ms 600 KB Output is correct
34 Correct 6 ms 344 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 5 ms 600 KB Output is correct
37 Correct 8 ms 456 KB Output is correct
38 Correct 7 ms 344 KB Output is correct
39 Correct 7 ms 344 KB Output is correct
40 Correct 8 ms 344 KB Output is correct
41 Correct 7 ms 344 KB Output is correct
42 Correct 8 ms 344 KB Output is correct
43 Correct 11 ms 460 KB Output is correct
44 Correct 7 ms 344 KB Output is correct
45 Correct 5 ms 344 KB Output is correct
46 Correct 5 ms 344 KB Output is correct
47 Correct 6 ms 344 KB Output is correct
48 Correct 8 ms 344 KB Output is correct
49 Correct 6 ms 344 KB Output is correct
50 Correct 5 ms 344 KB Output is correct
51 Correct 7 ms 344 KB Output is correct
52 Correct 7 ms 344 KB Output is correct
53 Correct 6 ms 456 KB Output is correct
54 Correct 5 ms 344 KB Output is correct
55 Correct 6 ms 456 KB Output is correct
56 Correct 7 ms 600 KB Output is correct
57 Correct 8 ms 464 KB Output is correct
58 Correct 8 ms 344 KB Output is correct
59 Correct 10 ms 344 KB Output is correct
60 Correct 10 ms 344 KB Output is correct
61 Correct 8 ms 344 KB Output is correct
62 Correct 6 ms 600 KB Output is correct
63 Correct 8 ms 344 KB Output is correct
64 Correct 6 ms 344 KB Output is correct

Subtask #4
0.0 / 60.0

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