답안 #546795

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
546795	2022-04-08T13:45:50 Z	lovrot	꿈 (IOI13_dreaming)	C++11	47 / 100	306 ms	22968 KB

dreaming

#include <bits/stdc++.h>
#include "dreaming.h"

#define X first
#define Y second
#define pii pair<int, int> 
#define pb push_back

using namespace std;
 
const int MN = 200010;
const int INF = 2 * 1e9 + 10;

int n, m, l;
int min_max[MN], c[MN];
int nxt[MN], maxp[MN], h[MN], nxte[MN];

bool mark[MN], bio[MN];

vector<pii> g[MN];
vector<int> used; 
set<int> s;
 
int Find(int x){ 
	//cout << x << " +\n";
	if(h[x] == x)
		return x;
	return h[x] = Find(h[x]);
}
 
void Union(int x, int y){ 
	h[x] = Find(y);
}
 
void use(int x){ 
	if(!mark[x]){ 
		used.pb(x);
		mark[x] = true;
	}
}

int maxPath(int x){
	use(x);
	bio[x] = true;
	maxp[x] = 0;
	int mi = x;
	for(pair<int, int> e : g[x]){
		int y = e.X;
		if(bio[y])
			continue;

		int val = e.Y; 
		int f = maxPath(y);
		if(maxp[y] + val > maxp[x]){ 
			maxp[x] = maxp[y] + val;
			mi = f;
			nxt[x] = y;
			nxte[x] = val;
		}
	}

	//cout << x << " " << maxp[x] << " " << mi << "\n";

	return mi;
}
 
void clearUsed(){ 
	for(int x : used){
		nxt[x] = 0;
		maxp[x] = 0;
		mark[x] = false;
		bio[x] = 0;
		nxte[x] = 0;
	}
	used.clear();
}
 
pii findCenter(int x, bool printp){ 
	clearUsed();
	x = maxPath(x);	
	clearUsed();
	int y = maxPath(x);

	int s = maxp[x]; 
 	int zb = 0;

 	if(printp){ 
 		return {s, 0};
 	}

	int mn = INF, mni = x; 
	while(x != y){ 
		if(mn > max(zb, s - zb)){ 
			mn = max(zb, s - zb);
			mni = x;
		}	
		//cout << x << " -> " << nxt[x] << " (" << nxte[x] << " " << zb << ")\n";
		zb += nxte[x]; 
		x = nxt[x];
	}

	if(mn == INF)
		mn = 0;

	return {mni, mn};
}
 
int travelTime(int N, int M, int L, int A[], int B[], int T[]){
	ios_base::sync_with_stdio(false);
	
	for(int i = 0; i < MN; i++){
		h[i] = i;
		c[i] = i;
	}
 
	//cin >> n >> m >> l;
 	n = N;
 	m = M;
 	l = L;

	for(int i = 0; i < n; i++)
		s.insert(i);
 
	for(int i = 0; i < m; i++){ 
		int a, b, t;
		//cin >> a >> b >> t;
 		a = A[i];
 		b = B[i]; 
 		t = T[i];

		g[a].push_back({b, t});
		g[b].push_back({a, t});
		a = Find(a);
		b = Find(b);
		
		s.erase(a);
		s.erase(b);
		Union(a, b);
		s.insert(Find(a));
	}
 	
	auto it = s.begin();
	while(it != s.end()){ 
		pii res = findCenter(*it, 0);
		
		c[*it] = res.X;
		min_max[*it] = res.Y;

		it++;
	}

	while(s.size() > 1){
		auto it = s.begin(); 
		int a = *it;
		it++; 
		int b = *it;

		int ca = c[a], av = min_max[a];
		int cb = c[b], bv = min_max[b]; 
		
		s.erase(a);
		s.erase(b);
		Union(a, b);
		g[ca].pb({cb, l});
		g[cb].pb({ca, l});

		int nh = Find(a);
		s.insert(nh);

		if(max(av, bv + l) > max(bv, av + l)){
			swap(ca, cb);
			swap(av, bv);
		}
		c[nh] = ca;
		min_max[nh] = max(av, bv + l);
	}
	pii ret = findCenter(*(s.begin()), 1);
	return ret.X;
}
/*
int main(){ 
	int n, m, l;
	int a[MN], b[MN], t[MN]; 
	cin >> n >> m >> l;
	for(int i = 0; i < m; i++)
		cin >> a[i] >> b[i] >> t[i];
	cout << travelTime(n, m, l, a, b, t) << "\n";
	return 0;
}*/

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	177 ms	20948 KB	Output is correct
2	Correct	198 ms	20816 KB	Output is correct
3	Correct	87 ms	15928 KB	Output is correct
4	Correct	17 ms	8788 KB	Output is correct
5	Correct	14 ms	7996 KB	Output is correct
6	Correct	31 ms	10016 KB	Output is correct
7	Correct	5 ms	6612 KB	Output is correct
8	Correct	84 ms	12088 KB	Output is correct
9	Correct	82 ms	14060 KB	Output is correct
10	Correct	4 ms	6740 KB	Output is correct
11	Correct	139 ms	16592 KB	Output is correct
12	Correct	207 ms	18892 KB	Output is correct
13	Correct	6 ms	6768 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	6612 KB	Output is correct
2	Correct	3 ms	6612 KB	Output is correct
3	Correct	3 ms	6612 KB	Output is correct
4	Correct	4 ms	6608 KB	Output is correct
5	Correct	3 ms	6636 KB	Output is correct
6	Correct	4 ms	6612 KB	Output is correct
7	Correct	4 ms	6612 KB	Output is correct
8	Correct	4 ms	6612 KB	Output is correct
9	Correct	3 ms	6612 KB	Output is correct
10	Correct	4 ms	6612 KB	Output is correct
11	Correct	4 ms	6636 KB	Output is correct
12	Correct	4 ms	6612 KB	Output is correct
13	Correct	4 ms	6612 KB	Output is correct
14	Correct	5 ms	6612 KB	Output is correct
15	Correct	4 ms	6612 KB	Output is correct
16	Correct	4 ms	6612 KB	Output is correct
17	Correct	5 ms	6648 KB	Output is correct
18	Correct	4 ms	6612 KB	Output is correct
19	Correct	4 ms	6612 KB	Output is correct
20	Correct	4 ms	6612 KB	Output is correct
21	Correct	4 ms	6612 KB	Output is correct
22	Correct	3 ms	6648 KB	Output is correct
23	Correct	3 ms	6612 KB	Output is correct
24	Correct	3 ms	6612 KB	Output is correct
25	Correct	3 ms	6612 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	177 ms	20948 KB	Output is correct
2	Correct	198 ms	20816 KB	Output is correct
3	Correct	87 ms	15928 KB	Output is correct
4	Correct	17 ms	8788 KB	Output is correct
5	Correct	14 ms	7996 KB	Output is correct
6	Correct	31 ms	10016 KB	Output is correct
7	Correct	5 ms	6612 KB	Output is correct
8	Correct	84 ms	12088 KB	Output is correct
9	Correct	82 ms	14060 KB	Output is correct
10	Correct	4 ms	6740 KB	Output is correct
11	Correct	139 ms	16592 KB	Output is correct
12	Correct	207 ms	18892 KB	Output is correct
13	Correct	6 ms	6768 KB	Output is correct
14	Correct	4 ms	6612 KB	Output is correct
15	Correct	3 ms	6612 KB	Output is correct
16	Correct	3 ms	6612 KB	Output is correct
17	Correct	4 ms	6608 KB	Output is correct
18	Correct	3 ms	6636 KB	Output is correct
19	Correct	4 ms	6612 KB	Output is correct
20	Correct	4 ms	6612 KB	Output is correct
21	Correct	4 ms	6612 KB	Output is correct
22	Correct	3 ms	6612 KB	Output is correct
23	Correct	4 ms	6612 KB	Output is correct
24	Correct	4 ms	6636 KB	Output is correct
25	Correct	4 ms	6612 KB	Output is correct
26	Correct	4 ms	6612 KB	Output is correct
27	Correct	5 ms	6612 KB	Output is correct
28	Correct	4 ms	6612 KB	Output is correct
29	Correct	4 ms	6612 KB	Output is correct
30	Correct	5 ms	6648 KB	Output is correct
31	Correct	4 ms	6612 KB	Output is correct
32	Correct	4 ms	6612 KB	Output is correct
33	Correct	4 ms	6612 KB	Output is correct
34	Correct	4 ms	6612 KB	Output is correct
35	Correct	3 ms	6648 KB	Output is correct
36	Correct	3 ms	6612 KB	Output is correct
37	Correct	3 ms	6612 KB	Output is correct
38	Correct	3 ms	6612 KB	Output is correct
39	Correct	175 ms	20836 KB	Output is correct
40	Correct	176 ms	20796 KB	Output is correct
41	Correct	87 ms	16176 KB	Output is correct
42	Correct	17 ms	8808 KB	Output is correct
43	Correct	4 ms	6612 KB	Output is correct
44	Correct	3 ms	6612 KB	Output is correct
45	Correct	3 ms	6612 KB	Output is correct
46	Correct	4 ms	6612 KB	Output is correct
47	Correct	5 ms	6592 KB	Output is correct
48	Correct	4 ms	6612 KB	Output is correct
49	Correct	4 ms	6612 KB	Output is correct
50	Correct	4 ms	6612 KB	Output is correct
51	Correct	4 ms	6612 KB	Output is correct
52	Correct	3 ms	6612 KB	Output is correct
53	Correct	4 ms	6612 KB	Output is correct
54	Correct	4 ms	6612 KB	Output is correct
55	Correct	4 ms	6612 KB	Output is correct
56	Correct	4 ms	6612 KB	Output is correct
57	Correct	201 ms	15320 KB	Output is correct
58	Correct	201 ms	15320 KB	Output is correct
59	Correct	306 ms	15432 KB	Output is correct
60	Correct	207 ms	15436 KB	Output is correct
61	Correct	192 ms	15272 KB	Output is correct
62	Correct	249 ms	15340 KB	Output is correct
63	Correct	182 ms	14928 KB	Output is correct
64	Correct	241 ms	15048 KB	Output is correct
65	Correct	217 ms	15048 KB	Output is correct
66	Correct	189 ms	15056 KB	Output is correct
67	Correct	250 ms	15320 KB	Output is correct
68	Correct	232 ms	15304 KB	Output is correct
69	Correct	213 ms	15432 KB	Output is correct
70	Correct	240 ms	15436 KB	Output is correct
71	Correct	4 ms	6552 KB	Output is correct
72	Correct	7 ms	6868 KB	Output is correct
73	Correct	7 ms	6868 KB	Output is correct
74	Correct	6 ms	6868 KB	Output is correct
75	Correct	6 ms	6868 KB	Output is correct
76	Correct	7 ms	6868 KB	Output is correct
77	Correct	6 ms	6868 KB	Output is correct
78	Correct	7 ms	6976 KB	Output is correct
79	Correct	6 ms	6868 KB	Output is correct
80	Correct	230 ms	15384 KB	Output is correct
81	Correct	249 ms	15376 KB	Output is correct
82	Correct	198 ms	15244 KB	Output is correct
83	Correct	227 ms	15316 KB	Output is correct
84	Correct	5 ms	6868 KB	Output is correct
85	Correct	6 ms	6740 KB	Output is correct
86	Correct	6 ms	6868 KB	Output is correct
87	Correct	6 ms	6868 KB	Output is correct
88	Correct	6 ms	6868 KB	Output is correct
89	Correct	6 ms	6868 KB	Output is correct
90	Correct	6 ms	6844 KB	Output is correct
91	Correct	7 ms	6868 KB	Output is correct
92	Correct	7 ms	6868 KB	Output is correct
93	Correct	6 ms	6868 KB	Output is correct
94	Correct	3 ms	6612 KB	Output is correct
95	Correct	4 ms	6612 KB	Output is correct
96	Correct	3 ms	6576 KB	Output is correct
97	Correct	4 ms	6612 KB	Output is correct
98	Correct	4 ms	6612 KB	Output is correct
99	Correct	4 ms	6612 KB	Output is correct
100	Correct	4 ms	6612 KB	Output is correct
101	Correct	5 ms	6556 KB	Output is correct
102	Correct	5 ms	6572 KB	Output is correct
103	Correct	4 ms	6612 KB	Output is correct
104	Correct	16 ms	7892 KB	Output is correct
105	Correct	35 ms	10056 KB	Output is correct
106	Correct	4 ms	6612 KB	Output is correct
107	Correct	71 ms	12100 KB	Output is correct
108	Correct	81 ms	13976 KB	Output is correct
109	Correct	4 ms	6740 KB	Output is correct
110	Correct	130 ms	16620 KB	Output is correct
111	Correct	194 ms	18904 KB	Output is correct
112	Correct	7 ms	6772 KB	Output is correct
113	Correct	260 ms	22968 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	127 ms	15272 KB	Output is correct
2	Incorrect	115 ms	15264 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	6612 KB	Output is correct
2	Correct	3 ms	6612 KB	Output is correct
3	Correct	3 ms	6612 KB	Output is correct
4	Correct	4 ms	6608 KB	Output is correct
5	Correct	3 ms	6636 KB	Output is correct
6	Correct	4 ms	6612 KB	Output is correct
7	Correct	4 ms	6612 KB	Output is correct
8	Correct	4 ms	6612 KB	Output is correct
9	Correct	3 ms	6612 KB	Output is correct
10	Correct	4 ms	6612 KB	Output is correct
11	Correct	4 ms	6636 KB	Output is correct
12	Correct	4 ms	6612 KB	Output is correct
13	Correct	4 ms	6612 KB	Output is correct
14	Correct	5 ms	6612 KB	Output is correct
15	Correct	4 ms	6612 KB	Output is correct
16	Correct	4 ms	6612 KB	Output is correct
17	Correct	5 ms	6648 KB	Output is correct
18	Correct	4 ms	6612 KB	Output is correct
19	Correct	4 ms	6612 KB	Output is correct
20	Correct	4 ms	6612 KB	Output is correct
21	Correct	4 ms	6612 KB	Output is correct
22	Correct	3 ms	6648 KB	Output is correct
23	Correct	3 ms	6612 KB	Output is correct
24	Correct	3 ms	6612 KB	Output is correct
25	Correct	3 ms	6612 KB	Output is correct
26	Correct	5 ms	6740 KB	Output is correct
27	Correct	6 ms	6740 KB	Output is correct
28	Correct	7 ms	6920 KB	Output is correct
29	Correct	4 ms	6612 KB	Output is correct
30	Correct	6 ms	6824 KB	Output is correct
31	Correct	7 ms	6884 KB	Output is correct
32	Correct	4 ms	6640 KB	Output is correct
33	Correct	6 ms	6740 KB	Output is correct
34	Correct	7 ms	6868 KB	Output is correct
35	Correct	4 ms	6612 KB	Output is correct
36	Correct	4 ms	6612 KB	Output is correct
37	Correct	3 ms	6612 KB	Output is correct
38	Correct	4 ms	6612 KB	Output is correct
39	Correct	4 ms	6612 KB	Output is correct
40	Incorrect	4 ms	6612 KB	Output isn't correct
41	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	177 ms	20948 KB	Output is correct
2	Correct	198 ms	20816 KB	Output is correct
3	Correct	87 ms	15928 KB	Output is correct
4	Correct	17 ms	8788 KB	Output is correct
5	Correct	14 ms	7996 KB	Output is correct
6	Correct	31 ms	10016 KB	Output is correct
7	Correct	5 ms	6612 KB	Output is correct
8	Correct	84 ms	12088 KB	Output is correct
9	Correct	82 ms	14060 KB	Output is correct
10	Correct	4 ms	6740 KB	Output is correct
11	Correct	139 ms	16592 KB	Output is correct
12	Correct	207 ms	18892 KB	Output is correct
13	Correct	6 ms	6768 KB	Output is correct
14	Correct	4 ms	6612 KB	Output is correct
15	Correct	3 ms	6612 KB	Output is correct
16	Correct	3 ms	6612 KB	Output is correct
17	Correct	4 ms	6608 KB	Output is correct
18	Correct	3 ms	6636 KB	Output is correct
19	Correct	4 ms	6612 KB	Output is correct
20	Correct	4 ms	6612 KB	Output is correct
21	Correct	4 ms	6612 KB	Output is correct
22	Correct	3 ms	6612 KB	Output is correct
23	Correct	4 ms	6612 KB	Output is correct
24	Correct	4 ms	6636 KB	Output is correct
25	Correct	4 ms	6612 KB	Output is correct
26	Correct	4 ms	6612 KB	Output is correct
27	Correct	5 ms	6612 KB	Output is correct
28	Correct	4 ms	6612 KB	Output is correct
29	Correct	4 ms	6612 KB	Output is correct
30	Correct	5 ms	6648 KB	Output is correct
31	Correct	4 ms	6612 KB	Output is correct
32	Correct	4 ms	6612 KB	Output is correct
33	Correct	4 ms	6612 KB	Output is correct
34	Correct	4 ms	6612 KB	Output is correct
35	Correct	3 ms	6648 KB	Output is correct
36	Correct	3 ms	6612 KB	Output is correct
37	Correct	3 ms	6612 KB	Output is correct
38	Correct	3 ms	6612 KB	Output is correct
39	Correct	175 ms	20836 KB	Output is correct
40	Correct	176 ms	20796 KB	Output is correct
41	Correct	87 ms	16176 KB	Output is correct
42	Correct	17 ms	8808 KB	Output is correct
43	Correct	4 ms	6612 KB	Output is correct
44	Correct	3 ms	6612 KB	Output is correct
45	Correct	3 ms	6612 KB	Output is correct
46	Correct	4 ms	6612 KB	Output is correct
47	Correct	5 ms	6592 KB	Output is correct
48	Correct	4 ms	6612 KB	Output is correct
49	Correct	4 ms	6612 KB	Output is correct
50	Correct	4 ms	6612 KB	Output is correct
51	Correct	4 ms	6612 KB	Output is correct
52	Correct	3 ms	6612 KB	Output is correct
53	Correct	4 ms	6612 KB	Output is correct
54	Correct	4 ms	6612 KB	Output is correct
55	Correct	4 ms	6612 KB	Output is correct
56	Correct	4 ms	6612 KB	Output is correct
57	Correct	201 ms	15320 KB	Output is correct
58	Correct	201 ms	15320 KB	Output is correct
59	Correct	306 ms	15432 KB	Output is correct
60	Correct	207 ms	15436 KB	Output is correct
61	Correct	192 ms	15272 KB	Output is correct
62	Correct	249 ms	15340 KB	Output is correct
63	Correct	182 ms	14928 KB	Output is correct
64	Correct	241 ms	15048 KB	Output is correct
65	Correct	217 ms	15048 KB	Output is correct
66	Correct	189 ms	15056 KB	Output is correct
67	Correct	250 ms	15320 KB	Output is correct
68	Correct	232 ms	15304 KB	Output is correct
69	Correct	213 ms	15432 KB	Output is correct
70	Correct	240 ms	15436 KB	Output is correct
71	Correct	4 ms	6552 KB	Output is correct
72	Correct	7 ms	6868 KB	Output is correct
73	Correct	7 ms	6868 KB	Output is correct
74	Correct	6 ms	6868 KB	Output is correct
75	Correct	6 ms	6868 KB	Output is correct
76	Correct	7 ms	6868 KB	Output is correct
77	Correct	6 ms	6868 KB	Output is correct
78	Correct	7 ms	6976 KB	Output is correct
79	Correct	6 ms	6868 KB	Output is correct
80	Correct	230 ms	15384 KB	Output is correct
81	Correct	249 ms	15376 KB	Output is correct
82	Correct	198 ms	15244 KB	Output is correct
83	Correct	227 ms	15316 KB	Output is correct
84	Correct	5 ms	6868 KB	Output is correct
85	Correct	6 ms	6740 KB	Output is correct
86	Correct	6 ms	6868 KB	Output is correct
87	Correct	6 ms	6868 KB	Output is correct
88	Correct	6 ms	6868 KB	Output is correct
89	Correct	6 ms	6868 KB	Output is correct
90	Correct	6 ms	6844 KB	Output is correct
91	Correct	7 ms	6868 KB	Output is correct
92	Correct	7 ms	6868 KB	Output is correct
93	Correct	6 ms	6868 KB	Output is correct
94	Correct	3 ms	6612 KB	Output is correct
95	Correct	4 ms	6612 KB	Output is correct
96	Correct	3 ms	6576 KB	Output is correct
97	Correct	4 ms	6612 KB	Output is correct
98	Correct	4 ms	6612 KB	Output is correct
99	Correct	4 ms	6612 KB	Output is correct
100	Correct	4 ms	6612 KB	Output is correct
101	Correct	5 ms	6556 KB	Output is correct
102	Correct	5 ms	6572 KB	Output is correct
103	Correct	4 ms	6612 KB	Output is correct
104	Correct	16 ms	7892 KB	Output is correct
105	Correct	35 ms	10056 KB	Output is correct
106	Correct	4 ms	6612 KB	Output is correct
107	Correct	71 ms	12100 KB	Output is correct
108	Correct	81 ms	13976 KB	Output is correct
109	Correct	4 ms	6740 KB	Output is correct
110	Correct	130 ms	16620 KB	Output is correct
111	Correct	194 ms	18904 KB	Output is correct
112	Correct	7 ms	6772 KB	Output is correct
113	Correct	260 ms	22968 KB	Output is correct
114	Correct	127 ms	15272 KB	Output is correct
115	Incorrect	115 ms	15264 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #546795

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 10.0 / 10.0

Subtask #3 23.0 / 23.0

Subtask #4 0 / 18.0

Subtask #5 0 / 12.0

Subtask #6 0 / 23.0

Subtask #1
14.0 / 14.0

Subtask #2
10.0 / 10.0

Subtask #3
23.0 / 23.0

Subtask #4
0 / 18.0

Subtask #5
0 / 12.0

Subtask #6
0 / 23.0