답안 #272181

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
272181	2020-08-18T10:15:07 Z	_7_7_	꿈 (IOI13_dreaming)	C++14	47 / 100	236 ms	24820 KB

dreaming

#include <bits/stdc++.h>                                           
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "dreaming.h" 

using namespace std;
using namespace __gnu_pbds;
 
//#define int long long
//#pragma GCC optimize("Ofast")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
 
 
#define file(s) freopen(s".in","r",stdin); freopen(s".out","w",stdout);
#define fastio ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define all(x) x.begin(), x.end()
#define sz(s) (int)s.size()
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define s second
#define f first
 
 
 
 
typedef pair < long long, long long > pll;    
typedef pair < int, int > pii;  
typedef unsigned long long ull;         
typedef vector < pii > vpii;                                   	
typedef vector < int > vi;
typedef long double ldb;  
typedef long long ll;  
typedef double db;
 
typedef tree < int, null_type, less < int >, rb_tree_tag, tree_order_statistics_node_update > ordered_set;
 
const int inf = 1e9, maxn = 2e5 + 48, mod = 998244353, N = 1e5 + 12;
const int dx[] = {1, -1, 0, 0}, dy[] = {0, 0, 1, -1}, block = 300;
const pii base = mp(1171, 3307), Mod = mp(1e9 + 7, 1e9 + 9);
const db eps = 1e-12, pi = acos(-1);
const ll INF = 1e18;


int up[N][17], d[N], s[N], v, u;
vpii g[N];
vi V, vv;

void dfs (int v, int p = 0) {
    V.pb(v);
    d[v] = d[p] + 1;
	up[v][0] = p;
	for (int i = 1; i < 17; ++i)
		up[v][i] = up[up[v][i - 1]][i - 1];

	for (auto x : g[v]) {
		int to = x.f;
		if (to != p) {
		    s[to] = s[v] + x.s;
			dfs(to, v);
		}
	}
}


int lca (int v, int u) {
	if (d[v] < d[u])
		swap(v, u);

	for (int i = 16; i >= 0; --i)
		if (d[v] - (1 << i) >= d[u])
			v = up[v][i];

	if (v == u)
		return v;

	for (int i = 16; i >= 0; --i)
		if (up[v][i] != up[u][i]) {
			v = up[v][i];
			u = up[u][i];
		}

	return up[v][0];
}

int dist (int v, int u) {
	int l = lca(v, u);
	return s[v] + s[u] - 2*s[l];
}

int travelTime(int n, int m, int L, int a[], int b[], int w[]) {
	for (int i = 0; i < m; ++i)  {
		++a[i], ++b[i];
		g[a[i]].pb({b[i], w[i]});
		g[b[i]].pb({a[i], w[i]});
	}

	int ans = 0;
	for (int i = 1; i <= n; ++i) 
		if (!d[i]) {
			V.clear();
			dfs(i);		 
			v = i;
			for (auto j : V)
				if (s[j] > s[v])
					v = j;

			V.clear();
			dfs(v);
			int u = v;
			for (auto j : V)
				if (s[j] > s[u]) 
					u = j;

			int mn = inf + inf;
			for (auto j : V)
				mn = min(mn, max(dist(v, j), dist(u, j)));
//			cerr << i << ' ' << v << ' ' << u << ' ' << mn << endl;
			ans = max(ans, dist(v, u));
			vv.pb(mn);
		}

	assert(sz(vv) == n - m);
	assert(n - m == 2);

	sort(all(vv));
	reverse(all(vv));
	if (sz(vv) == 1)
		return max(ans, vv[0]);
	if (sz(vv) == 2)
		return max(ans, vv[0] + vv[1] + L);

	return max({ans, vv[0] + vv[1] + L, vv[1] + vv[2] + L + L});	
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	18168 KB	Output is correct
2	Correct	147 ms	18932 KB	Output is correct
3	Correct	87 ms	13684 KB	Output is correct
4	Correct	16 ms	5248 KB	Output is correct
5	Correct	11 ms	4224 KB	Output is correct
6	Correct	26 ms	6528 KB	Output is correct
7	Correct	3 ms	2688 KB	Output is correct
8	Correct	58 ms	9208 KB	Output is correct
9	Correct	90 ms	11428 KB	Output is correct
10	Correct	2 ms	2816 KB	Output is correct
11	Correct	151 ms	14200 KB	Output is correct
12	Correct	138 ms	16492 KB	Output is correct
13	Correct	3 ms	2816 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	18168 KB	Output is correct
2	Correct	147 ms	18932 KB	Output is correct
3	Correct	87 ms	13684 KB	Output is correct
4	Correct	16 ms	5248 KB	Output is correct
5	Correct	11 ms	4224 KB	Output is correct
6	Correct	26 ms	6528 KB	Output is correct
7	Correct	3 ms	2688 KB	Output is correct
8	Correct	58 ms	9208 KB	Output is correct
9	Correct	90 ms	11428 KB	Output is correct
10	Correct	2 ms	2816 KB	Output is correct
11	Correct	151 ms	14200 KB	Output is correct
12	Correct	138 ms	16492 KB	Output is correct
13	Correct	3 ms	2816 KB	Output is correct
14	Correct	2 ms	2688 KB	Output is correct
15	Correct	2 ms	2688 KB	Output is correct
16	Correct	2 ms	2688 KB	Output is correct
17	Correct	2 ms	2688 KB	Output is correct
18	Correct	3 ms	2688 KB	Output is correct
19	Correct	3 ms	2688 KB	Output is correct
20	Correct	2 ms	2688 KB	Output is correct
21	Correct	2 ms	2688 KB	Output is correct
22	Correct	3 ms	2688 KB	Output is correct
23	Correct	3 ms	2688 KB	Output is correct
24	Correct	3 ms	2688 KB	Output is correct
25	Correct	3 ms	2688 KB	Output is correct
26	Correct	2 ms	2688 KB	Output is correct
27	Correct	3 ms	2688 KB	Output is correct
28	Correct	2 ms	2688 KB	Output is correct
29	Correct	3 ms	2688 KB	Output is correct
30	Correct	3 ms	2688 KB	Output is correct
31	Correct	3 ms	2688 KB	Output is correct
32	Correct	2 ms	2688 KB	Output is correct
33	Correct	3 ms	2688 KB	Output is correct
34	Correct	2 ms	2688 KB	Output is correct
35	Correct	3 ms	2688 KB	Output is correct
36	Correct	2 ms	2720 KB	Output is correct
37	Correct	2 ms	2688 KB	Output is correct
38	Correct	2 ms	2688 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	18168 KB	Output is correct
2	Correct	147 ms	18932 KB	Output is correct
3	Correct	87 ms	13684 KB	Output is correct
4	Correct	16 ms	5248 KB	Output is correct
5	Correct	11 ms	4224 KB	Output is correct
6	Correct	26 ms	6528 KB	Output is correct
7	Correct	3 ms	2688 KB	Output is correct
8	Correct	58 ms	9208 KB	Output is correct
9	Correct	90 ms	11428 KB	Output is correct
10	Correct	2 ms	2816 KB	Output is correct
11	Correct	151 ms	14200 KB	Output is correct
12	Correct	138 ms	16492 KB	Output is correct
13	Correct	3 ms	2816 KB	Output is correct
14	Correct	2 ms	2688 KB	Output is correct
15	Correct	2 ms	2688 KB	Output is correct
16	Correct	2 ms	2688 KB	Output is correct
17	Correct	2 ms	2688 KB	Output is correct
18	Correct	3 ms	2688 KB	Output is correct
19	Correct	3 ms	2688 KB	Output is correct
20	Correct	2 ms	2688 KB	Output is correct
21	Correct	2 ms	2688 KB	Output is correct
22	Correct	3 ms	2688 KB	Output is correct
23	Correct	3 ms	2688 KB	Output is correct
24	Correct	3 ms	2688 KB	Output is correct
25	Correct	3 ms	2688 KB	Output is correct
26	Correct	2 ms	2688 KB	Output is correct
27	Correct	3 ms	2688 KB	Output is correct
28	Correct	2 ms	2688 KB	Output is correct
29	Correct	3 ms	2688 KB	Output is correct
30	Correct	3 ms	2688 KB	Output is correct
31	Correct	3 ms	2688 KB	Output is correct
32	Correct	2 ms	2688 KB	Output is correct
33	Correct	3 ms	2688 KB	Output is correct
34	Correct	2 ms	2688 KB	Output is correct
35	Correct	3 ms	2688 KB	Output is correct
36	Correct	2 ms	2720 KB	Output is correct
37	Correct	2 ms	2688 KB	Output is correct
38	Correct	2 ms	2688 KB	Output is correct
39	Correct	154 ms	18932 KB	Output is correct
40	Correct	167 ms	18932 KB	Output is correct
41	Correct	106 ms	13684 KB	Output is correct
42	Correct	20 ms	5248 KB	Output is correct
43	Correct	3 ms	2688 KB	Output is correct
44	Correct	2 ms	2688 KB	Output is correct
45	Correct	3 ms	2688 KB	Output is correct
46	Correct	2 ms	2688 KB	Output is correct
47	Correct	2 ms	2688 KB	Output is correct
48	Correct	2 ms	2688 KB	Output is correct
49	Correct	3 ms	2688 KB	Output is correct
50	Correct	2 ms	2688 KB	Output is correct
51	Correct	2 ms	2688 KB	Output is correct
52	Correct	2 ms	2688 KB	Output is correct
53	Correct	2 ms	2688 KB	Output is correct
54	Correct	3 ms	2688 KB	Output is correct
55	Correct	2 ms	2688 KB	Output is correct
56	Correct	2 ms	2688 KB	Output is correct
57	Correct	194 ms	16720 KB	Output is correct
58	Correct	152 ms	16376 KB	Output is correct
59	Correct	163 ms	16752 KB	Output is correct
60	Correct	218 ms	16248 KB	Output is correct
61	Correct	156 ms	16628 KB	Output is correct
62	Correct	160 ms	16304 KB	Output is correct
63	Correct	142 ms	16396 KB	Output is correct
64	Correct	156 ms	16376 KB	Output is correct
65	Correct	178 ms	16376 KB	Output is correct
66	Correct	143 ms	16380 KB	Output is correct
67	Correct	160 ms	16628 KB	Output is correct
68	Correct	157 ms	16756 KB	Output is correct
69	Correct	169 ms	16372 KB	Output is correct
70	Correct	186 ms	16248 KB	Output is correct
71	Correct	2 ms	2688 KB	Output is correct
72	Correct	5 ms	3200 KB	Output is correct
73	Correct	5 ms	3072 KB	Output is correct
74	Correct	5 ms	3072 KB	Output is correct
75	Correct	6 ms	3072 KB	Output is correct
76	Correct	5 ms	3072 KB	Output is correct
77	Correct	5 ms	3072 KB	Output is correct
78	Correct	5 ms	3072 KB	Output is correct
79	Correct	5 ms	3176 KB	Output is correct
80	Correct	180 ms	16628 KB	Output is correct
81	Correct	195 ms	16628 KB	Output is correct
82	Correct	167 ms	16632 KB	Output is correct
83	Correct	171 ms	16500 KB	Output is correct
84	Correct	4 ms	3072 KB	Output is correct
85	Correct	4 ms	3072 KB	Output is correct
86	Correct	4 ms	3072 KB	Output is correct
87	Correct	6 ms	3072 KB	Output is correct
88	Correct	4 ms	3072 KB	Output is correct
89	Correct	5 ms	3072 KB	Output is correct
90	Correct	4 ms	3072 KB	Output is correct
91	Correct	5 ms	3072 KB	Output is correct
92	Correct	5 ms	3072 KB	Output is correct
93	Correct	4 ms	3072 KB	Output is correct
94	Correct	2 ms	2688 KB	Output is correct
95	Correct	2 ms	2688 KB	Output is correct
96	Correct	2 ms	2816 KB	Output is correct
97	Correct	2 ms	2688 KB	Output is correct
98	Correct	2 ms	2688 KB	Output is correct
99	Correct	3 ms	2688 KB	Output is correct
100	Correct	3 ms	2688 KB	Output is correct
101	Correct	2 ms	2688 KB	Output is correct
102	Correct	2 ms	2688 KB	Output is correct
103	Correct	2 ms	2688 KB	Output is correct
104	Correct	12 ms	4224 KB	Output is correct
105	Correct	31 ms	6520 KB	Output is correct
106	Correct	3 ms	2688 KB	Output is correct
107	Correct	59 ms	9208 KB	Output is correct
108	Correct	114 ms	11384 KB	Output is correct
109	Correct	3 ms	2816 KB	Output is correct
110	Correct	125 ms	14200 KB	Output is correct
111	Correct	135 ms	16500 KB	Output is correct
112	Correct	3 ms	2816 KB	Output is correct
113	Correct	236 ms	20464 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	71 ms	24820 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	18168 KB	Output is correct
2	Correct	147 ms	18932 KB	Output is correct
3	Correct	87 ms	13684 KB	Output is correct
4	Correct	16 ms	5248 KB	Output is correct
5	Correct	11 ms	4224 KB	Output is correct
6	Correct	26 ms	6528 KB	Output is correct
7	Correct	3 ms	2688 KB	Output is correct
8	Correct	58 ms	9208 KB	Output is correct
9	Correct	90 ms	11428 KB	Output is correct
10	Correct	2 ms	2816 KB	Output is correct
11	Correct	151 ms	14200 KB	Output is correct
12	Correct	138 ms	16492 KB	Output is correct
13	Correct	3 ms	2816 KB	Output is correct
14	Runtime error	7 ms	5504 KB	Execution killed with signal 11
15	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	149 ms	18168 KB	Output is correct
2	Correct	147 ms	18932 KB	Output is correct
3	Correct	87 ms	13684 KB	Output is correct
4	Correct	16 ms	5248 KB	Output is correct
5	Correct	11 ms	4224 KB	Output is correct
6	Correct	26 ms	6528 KB	Output is correct
7	Correct	3 ms	2688 KB	Output is correct
8	Correct	58 ms	9208 KB	Output is correct
9	Correct	90 ms	11428 KB	Output is correct
10	Correct	2 ms	2816 KB	Output is correct
11	Correct	151 ms	14200 KB	Output is correct
12	Correct	138 ms	16492 KB	Output is correct
13	Correct	3 ms	2816 KB	Output is correct
14	Correct	2 ms	2688 KB	Output is correct
15	Correct	2 ms	2688 KB	Output is correct
16	Correct	2 ms	2688 KB	Output is correct
17	Correct	2 ms	2688 KB	Output is correct
18	Correct	3 ms	2688 KB	Output is correct
19	Correct	3 ms	2688 KB	Output is correct
20	Correct	2 ms	2688 KB	Output is correct
21	Correct	2 ms	2688 KB	Output is correct
22	Correct	3 ms	2688 KB	Output is correct
23	Correct	3 ms	2688 KB	Output is correct
24	Correct	3 ms	2688 KB	Output is correct
25	Correct	3 ms	2688 KB	Output is correct
26	Correct	2 ms	2688 KB	Output is correct
27	Correct	3 ms	2688 KB	Output is correct
28	Correct	2 ms	2688 KB	Output is correct
29	Correct	3 ms	2688 KB	Output is correct
30	Correct	3 ms	2688 KB	Output is correct
31	Correct	3 ms	2688 KB	Output is correct
32	Correct	2 ms	2688 KB	Output is correct
33	Correct	3 ms	2688 KB	Output is correct
34	Correct	2 ms	2688 KB	Output is correct
35	Correct	3 ms	2688 KB	Output is correct
36	Correct	2 ms	2720 KB	Output is correct
37	Correct	2 ms	2688 KB	Output is correct
38	Correct	2 ms	2688 KB	Output is correct
39	Correct	154 ms	18932 KB	Output is correct
40	Correct	167 ms	18932 KB	Output is correct
41	Correct	106 ms	13684 KB	Output is correct
42	Correct	20 ms	5248 KB	Output is correct
43	Correct	3 ms	2688 KB	Output is correct
44	Correct	2 ms	2688 KB	Output is correct
45	Correct	3 ms	2688 KB	Output is correct
46	Correct	2 ms	2688 KB	Output is correct
47	Correct	2 ms	2688 KB	Output is correct
48	Correct	2 ms	2688 KB	Output is correct
49	Correct	3 ms	2688 KB	Output is correct
50	Correct	2 ms	2688 KB	Output is correct
51	Correct	2 ms	2688 KB	Output is correct
52	Correct	2 ms	2688 KB	Output is correct
53	Correct	2 ms	2688 KB	Output is correct
54	Correct	3 ms	2688 KB	Output is correct
55	Correct	2 ms	2688 KB	Output is correct
56	Correct	2 ms	2688 KB	Output is correct
57	Correct	194 ms	16720 KB	Output is correct
58	Correct	152 ms	16376 KB	Output is correct
59	Correct	163 ms	16752 KB	Output is correct
60	Correct	218 ms	16248 KB	Output is correct
61	Correct	156 ms	16628 KB	Output is correct
62	Correct	160 ms	16304 KB	Output is correct
63	Correct	142 ms	16396 KB	Output is correct
64	Correct	156 ms	16376 KB	Output is correct
65	Correct	178 ms	16376 KB	Output is correct
66	Correct	143 ms	16380 KB	Output is correct
67	Correct	160 ms	16628 KB	Output is correct
68	Correct	157 ms	16756 KB	Output is correct
69	Correct	169 ms	16372 KB	Output is correct
70	Correct	186 ms	16248 KB	Output is correct
71	Correct	2 ms	2688 KB	Output is correct
72	Correct	5 ms	3200 KB	Output is correct
73	Correct	5 ms	3072 KB	Output is correct
74	Correct	5 ms	3072 KB	Output is correct
75	Correct	6 ms	3072 KB	Output is correct
76	Correct	5 ms	3072 KB	Output is correct
77	Correct	5 ms	3072 KB	Output is correct
78	Correct	5 ms	3072 KB	Output is correct
79	Correct	5 ms	3176 KB	Output is correct
80	Correct	180 ms	16628 KB	Output is correct
81	Correct	195 ms	16628 KB	Output is correct
82	Correct	167 ms	16632 KB	Output is correct
83	Correct	171 ms	16500 KB	Output is correct
84	Correct	4 ms	3072 KB	Output is correct
85	Correct	4 ms	3072 KB	Output is correct
86	Correct	4 ms	3072 KB	Output is correct
87	Correct	6 ms	3072 KB	Output is correct
88	Correct	4 ms	3072 KB	Output is correct
89	Correct	5 ms	3072 KB	Output is correct
90	Correct	4 ms	3072 KB	Output is correct
91	Correct	5 ms	3072 KB	Output is correct
92	Correct	5 ms	3072 KB	Output is correct
93	Correct	4 ms	3072 KB	Output is correct
94	Correct	2 ms	2688 KB	Output is correct
95	Correct	2 ms	2688 KB	Output is correct
96	Correct	2 ms	2816 KB	Output is correct
97	Correct	2 ms	2688 KB	Output is correct
98	Correct	2 ms	2688 KB	Output is correct
99	Correct	3 ms	2688 KB	Output is correct
100	Correct	3 ms	2688 KB	Output is correct
101	Correct	2 ms	2688 KB	Output is correct
102	Correct	2 ms	2688 KB	Output is correct
103	Correct	2 ms	2688 KB	Output is correct
104	Correct	12 ms	4224 KB	Output is correct
105	Correct	31 ms	6520 KB	Output is correct
106	Correct	3 ms	2688 KB	Output is correct
107	Correct	59 ms	9208 KB	Output is correct
108	Correct	114 ms	11384 KB	Output is correct
109	Correct	3 ms	2816 KB	Output is correct
110	Correct	125 ms	14200 KB	Output is correct
111	Correct	135 ms	16500 KB	Output is correct
112	Correct	3 ms	2816 KB	Output is correct
113	Correct	236 ms	20464 KB	Output is correct
114	Runtime error	71 ms	24820 KB	Execution killed with signal 11
115	Halted	0 ms	0 KB	-

답안 #272181

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