답안 #426506

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
426506	2021-06-14T05:44:51 Z	Aldas25	꿈 (IOI13_dreaming)	C++14	47 / 100	135 ms	16304 KB

dreaming

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

using namespace std;

#define FOR(i, a, b) for (int i = (a); i<= (b); i++)
#define REP(n) FOR(O, 1, (n))
#define f first
#define s second
#define pb push_back
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vii;
typedef long long ll;
typedef vector<ll> vl;

const int MAXN = 100100;
const ll INF = 1e15;

int n, m;
ll l;
vii adj[MAXN];

ll dp[MAXN][2];
bool vis[MAXN];

ll mx, sm;

void dfs1 (int v, int p = -1) {
    vis[v] = true;
    for (auto pp : adj[v]) {
        int u = pp.f;
        ll w = pp.s;
        if (u == p) continue;
        dfs1(u, v);

        ll cr = dp[u][0] + w;
        if (cr > dp[v][1]) dp[v][1] = cr;
        if (dp[v][1] > dp[v][0]) swap(dp[v][0], dp[v][1]);
    }

    mx = max(mx, dp[v][0]+dp[v][1]);

    //cout << " v = " << v << " dp0 = " << dp[v][0] << " dp1 = " << dp[v][1] << endl;
}

void dfs2 (int v, int p = -1, ll prevW = 0) {
    if (p != -1) {
        ll cr = 0;
        if (dp[p][0] != dp[v][0] + prevW)
            cr = dp[p][0] + prevW;
        else
            cr = dp[p][1] + prevW;

        if (cr > dp[v][1]) dp[v][1] = cr;
        if (dp[v][1] > dp[v][0]) swap(dp[v][0], dp[v][1]);
    }

    for (auto pp : adj[v]) {
        int u = pp.f;
        ll w = pp.s;
        if (u == p) continue;
        dfs2(u, v, w);
    }

    sm = min(sm, dp[v][0]);

    //cout << " dfs2 v = " << v << " dp0 = " << dp[v][0] << " dp1 = " << dp[v][1] << endl;
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    n = N;
    m = M;
    l = L;

    FOR(i, 0, m-1) {
        adj[A[i]].pb({B[i], T[i]});
        adj[B[i]].pb({A[i], T[i]});
    }

    ll ans = 0;
    vl sms;
    FOR(i, 0, n-1) {
        if (vis[i]) continue;
        mx = 0;
        dfs1 (i);
        ans = max(mx, ans);

        sm = INF;
        dfs2 (i);
        sms.pb(sm);
    }

    ll cur = 0;
    if ((int)sms.size() > 1) {
        sort(sms.begin(), sms.end());
        reverse(sms.begin(), sms.end());
        cur = sms[0] + sms[1] + l;
    }

    ans = max(ans, cur);

    return ans;
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	67 ms	11960 KB	Output is correct
2	Correct	61 ms	11656 KB	Output is correct
3	Correct	41 ms	10196 KB	Output is correct
4	Correct	8 ms	3916 KB	Output is correct
5	Correct	6 ms	3404 KB	Output is correct
6	Correct	14 ms	4668 KB	Output is correct
7	Correct	2 ms	2636 KB	Output is correct
8	Correct	26 ms	6476 KB	Output is correct
9	Correct	36 ms	8616 KB	Output is correct
10	Correct	3 ms	2684 KB	Output is correct
11	Correct	46 ms	9292 KB	Output is correct
12	Correct	83 ms	10564 KB	Output is correct
13	Correct	2 ms	2636 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2636 KB	Output is correct
2	Correct	2 ms	2764 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	3 ms	2636 KB	Output is correct
5	Correct	2 ms	2636 KB	Output is correct
6	Correct	2 ms	2636 KB	Output is correct
7	Correct	2 ms	2636 KB	Output is correct
8	Correct	2 ms	2636 KB	Output is correct
9	Correct	2 ms	2636 KB	Output is correct
10	Correct	2 ms	2636 KB	Output is correct
11	Correct	2 ms	2636 KB	Output is correct
12	Correct	2 ms	2636 KB	Output is correct
13	Correct	3 ms	2636 KB	Output is correct
14	Correct	2 ms	2636 KB	Output is correct
15	Correct	2 ms	2636 KB	Output is correct
16	Correct	2 ms	2636 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	2636 KB	Output is correct
19	Correct	2 ms	2636 KB	Output is correct
20	Correct	2 ms	2636 KB	Output is correct
21	Correct	2 ms	2636 KB	Output is correct
22	Correct	2 ms	2636 KB	Output is correct
23	Correct	2 ms	2636 KB	Output is correct
24	Correct	2 ms	2636 KB	Output is correct
25	Correct	2 ms	2636 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	67 ms	11960 KB	Output is correct
2	Correct	61 ms	11656 KB	Output is correct
3	Correct	41 ms	10196 KB	Output is correct
4	Correct	8 ms	3916 KB	Output is correct
5	Correct	6 ms	3404 KB	Output is correct
6	Correct	14 ms	4668 KB	Output is correct
7	Correct	2 ms	2636 KB	Output is correct
8	Correct	26 ms	6476 KB	Output is correct
9	Correct	36 ms	8616 KB	Output is correct
10	Correct	3 ms	2684 KB	Output is correct
11	Correct	46 ms	9292 KB	Output is correct
12	Correct	83 ms	10564 KB	Output is correct
13	Correct	2 ms	2636 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	2 ms	2764 KB	Output is correct
16	Correct	2 ms	2636 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	2636 KB	Output is correct
19	Correct	2 ms	2636 KB	Output is correct
20	Correct	2 ms	2636 KB	Output is correct
21	Correct	2 ms	2636 KB	Output is correct
22	Correct	2 ms	2636 KB	Output is correct
23	Correct	2 ms	2636 KB	Output is correct
24	Correct	2 ms	2636 KB	Output is correct
25	Correct	2 ms	2636 KB	Output is correct
26	Correct	3 ms	2636 KB	Output is correct
27	Correct	2 ms	2636 KB	Output is correct
28	Correct	2 ms	2636 KB	Output is correct
29	Correct	2 ms	2636 KB	Output is correct
30	Correct	3 ms	2636 KB	Output is correct
31	Correct	2 ms	2636 KB	Output is correct
32	Correct	2 ms	2636 KB	Output is correct
33	Correct	2 ms	2636 KB	Output is correct
34	Correct	2 ms	2636 KB	Output is correct
35	Correct	2 ms	2636 KB	Output is correct
36	Correct	2 ms	2636 KB	Output is correct
37	Correct	2 ms	2636 KB	Output is correct
38	Correct	2 ms	2636 KB	Output is correct
39	Correct	73 ms	11940 KB	Output is correct
40	Correct	66 ms	11664 KB	Output is correct
41	Correct	41 ms	10212 KB	Output is correct
42	Correct	9 ms	3928 KB	Output is correct
43	Correct	2 ms	2636 KB	Output is correct
44	Correct	2 ms	2636 KB	Output is correct
45	Correct	2 ms	2636 KB	Output is correct
46	Correct	2 ms	2636 KB	Output is correct
47	Correct	2 ms	2636 KB	Output is correct
48	Correct	2 ms	2636 KB	Output is correct
49	Correct	2 ms	2636 KB	Output is correct
50	Correct	2 ms	2636 KB	Output is correct
51	Correct	2 ms	2636 KB	Output is correct
52	Correct	2 ms	2636 KB	Output is correct
53	Correct	2 ms	2636 KB	Output is correct
54	Correct	2 ms	2636 KB	Output is correct
55	Correct	2 ms	2636 KB	Output is correct
56	Correct	2 ms	2636 KB	Output is correct
57	Correct	103 ms	9412 KB	Output is correct
58	Correct	74 ms	9412 KB	Output is correct
59	Correct	81 ms	9396 KB	Output is correct
60	Correct	70 ms	9316 KB	Output is correct
61	Correct	74 ms	9384 KB	Output is correct
62	Correct	103 ms	9248 KB	Output is correct
63	Correct	74 ms	9024 KB	Output is correct
64	Correct	77 ms	9140 KB	Output is correct
65	Correct	74 ms	9060 KB	Output is correct
66	Correct	68 ms	9140 KB	Output is correct
67	Correct	80 ms	9372 KB	Output is correct
68	Correct	135 ms	9404 KB	Output is correct
69	Correct	116 ms	9340 KB	Output is correct
70	Correct	105 ms	9380 KB	Output is correct
71	Correct	3 ms	2636 KB	Output is correct
72	Correct	4 ms	2764 KB	Output is correct
73	Correct	4 ms	2764 KB	Output is correct
74	Correct	3 ms	2764 KB	Output is correct
75	Correct	4 ms	2764 KB	Output is correct
76	Correct	4 ms	2764 KB	Output is correct
77	Correct	5 ms	2764 KB	Output is correct
78	Correct	4 ms	2764 KB	Output is correct
79	Correct	4 ms	2764 KB	Output is correct
80	Correct	110 ms	9348 KB	Output is correct
81	Correct	105 ms	9292 KB	Output is correct
82	Correct	93 ms	9304 KB	Output is correct
83	Correct	88 ms	9256 KB	Output is correct
84	Correct	3 ms	2816 KB	Output is correct
85	Correct	3 ms	2764 KB	Output is correct
86	Correct	3 ms	2764 KB	Output is correct
87	Correct	3 ms	2764 KB	Output is correct
88	Correct	3 ms	2764 KB	Output is correct
89	Correct	4 ms	2764 KB	Output is correct
90	Correct	4 ms	2764 KB	Output is correct
91	Correct	5 ms	2764 KB	Output is correct
92	Correct	3 ms	2764 KB	Output is correct
93	Correct	3 ms	2764 KB	Output is correct
94	Correct	2 ms	2636 KB	Output is correct
95	Correct	2 ms	2636 KB	Output is correct
96	Correct	2 ms	2648 KB	Output is correct
97	Correct	2 ms	2636 KB	Output is correct
98	Correct	2 ms	2636 KB	Output is correct
99	Correct	2 ms	2636 KB	Output is correct
100	Correct	2 ms	2636 KB	Output is correct
101	Correct	2 ms	2636 KB	Output is correct
102	Correct	2 ms	2636 KB	Output is correct
103	Correct	2 ms	2636 KB	Output is correct
104	Correct	7 ms	3404 KB	Output is correct
105	Correct	13 ms	4684 KB	Output is correct
106	Correct	2 ms	2636 KB	Output is correct
107	Correct	26 ms	6552 KB	Output is correct
108	Correct	40 ms	8652 KB	Output is correct
109	Correct	2 ms	2636 KB	Output is correct
110	Correct	53 ms	9404 KB	Output is correct
111	Correct	72 ms	10676 KB	Output is correct
112	Correct	2 ms	2636 KB	Output is correct
113	Correct	95 ms	16304 KB	Output is correct

Subtask #4
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	32 ms	7120 KB	Output is correct
2	Incorrect	30 ms	7624 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	2636 KB	Output is correct
2	Correct	2 ms	2764 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	3 ms	2636 KB	Output is correct
5	Correct	2 ms	2636 KB	Output is correct
6	Correct	2 ms	2636 KB	Output is correct
7	Correct	2 ms	2636 KB	Output is correct
8	Correct	2 ms	2636 KB	Output is correct
9	Correct	2 ms	2636 KB	Output is correct
10	Correct	2 ms	2636 KB	Output is correct
11	Correct	2 ms	2636 KB	Output is correct
12	Correct	2 ms	2636 KB	Output is correct
13	Correct	3 ms	2636 KB	Output is correct
14	Correct	2 ms	2636 KB	Output is correct
15	Correct	2 ms	2636 KB	Output is correct
16	Correct	2 ms	2636 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	2636 KB	Output is correct
19	Correct	2 ms	2636 KB	Output is correct
20	Correct	2 ms	2636 KB	Output is correct
21	Correct	2 ms	2636 KB	Output is correct
22	Correct	2 ms	2636 KB	Output is correct
23	Correct	2 ms	2636 KB	Output is correct
24	Correct	2 ms	2636 KB	Output is correct
25	Correct	2 ms	2636 KB	Output is correct
26	Correct	3 ms	2732 KB	Output is correct
27	Correct	3 ms	2764 KB	Output is correct
28	Correct	3 ms	2764 KB	Output is correct
29	Correct	2 ms	2636 KB	Output is correct
30	Correct	3 ms	2764 KB	Output is correct
31	Correct	3 ms	2892 KB	Output is correct
32	Incorrect	3 ms	2636 KB	Output isn't correct
33	Halted	0 ms	0 KB	-

Subtask #6
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	67 ms	11960 KB	Output is correct
2	Correct	61 ms	11656 KB	Output is correct
3	Correct	41 ms	10196 KB	Output is correct
4	Correct	8 ms	3916 KB	Output is correct
5	Correct	6 ms	3404 KB	Output is correct
6	Correct	14 ms	4668 KB	Output is correct
7	Correct	2 ms	2636 KB	Output is correct
8	Correct	26 ms	6476 KB	Output is correct
9	Correct	36 ms	8616 KB	Output is correct
10	Correct	3 ms	2684 KB	Output is correct
11	Correct	46 ms	9292 KB	Output is correct
12	Correct	83 ms	10564 KB	Output is correct
13	Correct	2 ms	2636 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	2 ms	2764 KB	Output is correct
16	Correct	2 ms	2636 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	2636 KB	Output is correct
19	Correct	2 ms	2636 KB	Output is correct
20	Correct	2 ms	2636 KB	Output is correct
21	Correct	2 ms	2636 KB	Output is correct
22	Correct	2 ms	2636 KB	Output is correct
23	Correct	2 ms	2636 KB	Output is correct
24	Correct	2 ms	2636 KB	Output is correct
25	Correct	2 ms	2636 KB	Output is correct
26	Correct	3 ms	2636 KB	Output is correct
27	Correct	2 ms	2636 KB	Output is correct
28	Correct	2 ms	2636 KB	Output is correct
29	Correct	2 ms	2636 KB	Output is correct
30	Correct	3 ms	2636 KB	Output is correct
31	Correct	2 ms	2636 KB	Output is correct
32	Correct	2 ms	2636 KB	Output is correct
33	Correct	2 ms	2636 KB	Output is correct
34	Correct	2 ms	2636 KB	Output is correct
35	Correct	2 ms	2636 KB	Output is correct
36	Correct	2 ms	2636 KB	Output is correct
37	Correct	2 ms	2636 KB	Output is correct
38	Correct	2 ms	2636 KB	Output is correct
39	Correct	73 ms	11940 KB	Output is correct
40	Correct	66 ms	11664 KB	Output is correct
41	Correct	41 ms	10212 KB	Output is correct
42	Correct	9 ms	3928 KB	Output is correct
43	Correct	2 ms	2636 KB	Output is correct
44	Correct	2 ms	2636 KB	Output is correct
45	Correct	2 ms	2636 KB	Output is correct
46	Correct	2 ms	2636 KB	Output is correct
47	Correct	2 ms	2636 KB	Output is correct
48	Correct	2 ms	2636 KB	Output is correct
49	Correct	2 ms	2636 KB	Output is correct
50	Correct	2 ms	2636 KB	Output is correct
51	Correct	2 ms	2636 KB	Output is correct
52	Correct	2 ms	2636 KB	Output is correct
53	Correct	2 ms	2636 KB	Output is correct
54	Correct	2 ms	2636 KB	Output is correct
55	Correct	2 ms	2636 KB	Output is correct
56	Correct	2 ms	2636 KB	Output is correct
57	Correct	103 ms	9412 KB	Output is correct
58	Correct	74 ms	9412 KB	Output is correct
59	Correct	81 ms	9396 KB	Output is correct
60	Correct	70 ms	9316 KB	Output is correct
61	Correct	74 ms	9384 KB	Output is correct
62	Correct	103 ms	9248 KB	Output is correct
63	Correct	74 ms	9024 KB	Output is correct
64	Correct	77 ms	9140 KB	Output is correct
65	Correct	74 ms	9060 KB	Output is correct
66	Correct	68 ms	9140 KB	Output is correct
67	Correct	80 ms	9372 KB	Output is correct
68	Correct	135 ms	9404 KB	Output is correct
69	Correct	116 ms	9340 KB	Output is correct
70	Correct	105 ms	9380 KB	Output is correct
71	Correct	3 ms	2636 KB	Output is correct
72	Correct	4 ms	2764 KB	Output is correct
73	Correct	4 ms	2764 KB	Output is correct
74	Correct	3 ms	2764 KB	Output is correct
75	Correct	4 ms	2764 KB	Output is correct
76	Correct	4 ms	2764 KB	Output is correct
77	Correct	5 ms	2764 KB	Output is correct
78	Correct	4 ms	2764 KB	Output is correct
79	Correct	4 ms	2764 KB	Output is correct
80	Correct	110 ms	9348 KB	Output is correct
81	Correct	105 ms	9292 KB	Output is correct
82	Correct	93 ms	9304 KB	Output is correct
83	Correct	88 ms	9256 KB	Output is correct
84	Correct	3 ms	2816 KB	Output is correct
85	Correct	3 ms	2764 KB	Output is correct
86	Correct	3 ms	2764 KB	Output is correct
87	Correct	3 ms	2764 KB	Output is correct
88	Correct	3 ms	2764 KB	Output is correct
89	Correct	4 ms	2764 KB	Output is correct
90	Correct	4 ms	2764 KB	Output is correct
91	Correct	5 ms	2764 KB	Output is correct
92	Correct	3 ms	2764 KB	Output is correct
93	Correct	3 ms	2764 KB	Output is correct
94	Correct	2 ms	2636 KB	Output is correct
95	Correct	2 ms	2636 KB	Output is correct
96	Correct	2 ms	2648 KB	Output is correct
97	Correct	2 ms	2636 KB	Output is correct
98	Correct	2 ms	2636 KB	Output is correct
99	Correct	2 ms	2636 KB	Output is correct
100	Correct	2 ms	2636 KB	Output is correct
101	Correct	2 ms	2636 KB	Output is correct
102	Correct	2 ms	2636 KB	Output is correct
103	Correct	2 ms	2636 KB	Output is correct
104	Correct	7 ms	3404 KB	Output is correct
105	Correct	13 ms	4684 KB	Output is correct
106	Correct	2 ms	2636 KB	Output is correct
107	Correct	26 ms	6552 KB	Output is correct
108	Correct	40 ms	8652 KB	Output is correct
109	Correct	2 ms	2636 KB	Output is correct
110	Correct	53 ms	9404 KB	Output is correct
111	Correct	72 ms	10676 KB	Output is correct
112	Correct	2 ms	2636 KB	Output is correct
113	Correct	95 ms	16304 KB	Output is correct
114	Correct	32 ms	7120 KB	Output is correct
115	Incorrect	30 ms	7624 KB	Output isn't correct
116	Halted	0 ms	0 KB	-

답안 #426506

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