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답안 #833048

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
833048 2023-08-21T20:56:43 Z SoulKnight 꿈 (IOI13_dreaming) C++17
47 / 100
 45 ms 17448 KB 
#include "dreaming.h"
// #include "bits/stdc++.h"
#include <iostream>
#include <vector>
#include <bitset>
#include <cstring>
#include <algorithm>

using namespace std;

#define ll long long
#define ln '\n'

const int N = 1e5 + 5;
const int INF = 1e9;


vector<pair<int, int>> adj[N];
int fir[N], sec[N], ans[N];

// int mn = INF, which = -1;
// vector<pair<int, int>> leader;

int mn = INF, mx = 0, final = 0;
vector<int> leader;

void dfs1(int u, int p){
    for (auto& [e, v]: adj[u]){
        if (v == p) continue;
        dfs1(v, u);
        if (fir[v] + e > fir[u]){
            sec[u] = fir[u];
            fir[u] = fir[v] + e;
        } else if (fir[v] + e > sec[u]){
            sec[u] = fir[v] + e;
        }
    }
}

void dfs2(int u, int p, int to_p){
    ans[u] = max(to_p, fir[u]);
    // if (ans[u] < mn){
    //     mn = ans[u];
    //     which = u;
    // }
    mn = min(mn, ans[u]);
    mx = max(mx, ans[u]);

    for (auto& [e, v]: adj[u]){
        if (v == p) continue;
        if (fir[v] + e == fir[u]){
            dfs2(v, u, max(to_p, sec[u])+e);
        } else dfs2(v, u, ans[u]+e);
    }
}

void getLongestPath(int u){
    dfs1(u, -1);
    dfs2(u, -1, 0);
}

int travelTime(int NN, int M, int L, int A[], int B[], int T[]) {
    for (int i = 0; i < M; i++){
        adj[A[i]].push_back({T[i], B[i]});
        adj[B[i]].push_back({T[i], A[i]});
    }
    memset(ans, -1, sizeof(ans));

    for (int i = 0; i < NN; i++){
        if (ans[i] != -1) continue;
        mn = INF; mx = 0;
        getLongestPath(i); // tree rooted at i
        // leader.push_back({mn, which});
        final = max(final, mx);
        leader.push_back(mn);
    }


    // for (int i = 0; i < NN; i++){
    //     cout << ans[i] << ' ';
    // }
    // cout << ln;

    sort(leader.begin(), leader.end());
    // for (auto& u: leader) cout << u << ' ';
    // cout << ln;
    int k = leader.size();

    if (k == 2) return max(final, leader[k-1] + leader[k-2] + L);
    else return max(final, max(leader[k-1] + leader[k-2] + L,
                    leader[k-2] + leader[k-3] + 2*L));
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 31 ms 12748 KB Output is correct
2 Correct 31 ms 12496 KB Output is correct
3 Correct 23 ms 10956 KB Output is correct
4 Correct 6 ms 4564 KB Output is correct
5 Correct 5 ms 3924 KB Output is correct
6 Correct 9 ms 5204 KB Output is correct
7 Correct 2 ms 3028 KB Output is correct
8 Correct 15 ms 7124 KB Output is correct
9 Correct 22 ms 9288 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 29 ms 10316 KB Output is correct
12 Correct 31 ms 11372 KB Output is correct
13 Correct 2 ms 3028 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3028 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3028 KB Output is correct
4 Correct 1 ms 3028 KB Output is correct
5 Correct 2 ms 3028 KB Output is correct
6 Correct 2 ms 3028 KB Output is correct
7 Correct 1 ms 3028 KB Output is correct
8 Correct 1 ms 3028 KB Output is correct
9 Correct 2 ms 3028 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 1 ms 3028 KB Output is correct
12 Correct 2 ms 3028 KB Output is correct
13 Correct 2 ms 3028 KB Output is correct
14 Correct 2 ms 3028 KB Output is correct
15 Correct 1 ms 3028 KB Output is correct
16 Correct 2 ms 3028 KB Output is correct
17 Correct 1 ms 3028 KB Output is correct
18 Correct 2 ms 3028 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 1 ms 3028 KB Output is correct
21 Correct 2 ms 3028 KB Output is correct
22 Correct 2 ms 3028 KB Output is correct
23 Correct 1 ms 3028 KB Output is correct
24 Correct 2 ms 3028 KB Output is correct
25 Correct 1 ms 3028 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 31 ms 12748 KB Output is correct
2 Correct 31 ms 12496 KB Output is correct
3 Correct 23 ms 10956 KB Output is correct
4 Correct 6 ms 4564 KB Output is correct
5 Correct 5 ms 3924 KB Output is correct
6 Correct 9 ms 5204 KB Output is correct
7 Correct 2 ms 3028 KB Output is correct
8 Correct 15 ms 7124 KB Output is correct
9 Correct 22 ms 9288 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 29 ms 10316 KB Output is correct
12 Correct 31 ms 11372 KB Output is correct
13 Correct 2 ms 3028 KB Output is correct
14 Correct 2 ms 3028 KB Output is correct
15 Correct 2 ms 3156 KB Output is correct
16 Correct 2 ms 3028 KB Output is correct
17 Correct 1 ms 3028 KB Output is correct
18 Correct 2 ms 3028 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 1 ms 3028 KB Output is correct
21 Correct 1 ms 3028 KB Output is correct
22 Correct 2 ms 3028 KB Output is correct
23 Correct 2 ms 3028 KB Output is correct
24 Correct 1 ms 3028 KB Output is correct
25 Correct 2 ms 3028 KB Output is correct
26 Correct 2 ms 3028 KB Output is correct
27 Correct 2 ms 3028 KB Output is correct
28 Correct 1 ms 3028 KB Output is correct
29 Correct 2 ms 3028 KB Output is correct
30 Correct 1 ms 3028 KB Output is correct
31 Correct 2 ms 3028 KB Output is correct
32 Correct 2 ms 3028 KB Output is correct
33 Correct 1 ms 3028 KB Output is correct
34 Correct 2 ms 3028 KB Output is correct
35 Correct 2 ms 3028 KB Output is correct
36 Correct 1 ms 3028 KB Output is correct
37 Correct 2 ms 3028 KB Output is correct
38 Correct 1 ms 3028 KB Output is correct
39 Correct 41 ms 13004 KB Output is correct
40 Correct 31 ms 12492 KB Output is correct
41 Correct 21 ms 10956 KB Output is correct
42 Correct 5 ms 4436 KB Output is correct
43 Correct 2 ms 3028 KB Output is correct
44 Correct 2 ms 3028 KB Output is correct
45 Correct 1 ms 3028 KB Output is correct
46 Correct 2 ms 3028 KB Output is correct
47 Correct 2 ms 3028 KB Output is correct
48 Correct 2 ms 3028 KB Output is correct
49 Correct 1 ms 3028 KB Output is correct
50 Correct 2 ms 3028 KB Output is correct
51 Correct 2 ms 3028 KB Output is correct
52 Correct 2 ms 3028 KB Output is correct
53 Correct 2 ms 3028 KB Output is correct
54 Correct 2 ms 3028 KB Output is correct
55 Correct 1 ms 3028 KB Output is correct
56 Correct 1 ms 3028 KB Output is correct
57 Correct 37 ms 10316 KB Output is correct
58 Correct 37 ms 10316 KB Output is correct
59 Correct 38 ms 10188 KB Output is correct
60 Correct 38 ms 10172 KB Output is correct
61 Correct 37 ms 10316 KB Output is correct
62 Correct 37 ms 10344 KB Output is correct
63 Correct 35 ms 9932 KB Output is correct
64 Correct 41 ms 9932 KB Output is correct
65 Correct 37 ms 10188 KB Output is correct
66 Correct 36 ms 10188 KB Output is correct
67 Correct 37 ms 10192 KB Output is correct
68 Correct 42 ms 10456 KB Output is correct
69 Correct 39 ms 10444 KB Output is correct
70 Correct 39 ms 10460 KB Output is correct
71 Correct 2 ms 3044 KB Output is correct
72 Correct 2 ms 3284 KB Output is correct
73 Correct 3 ms 3156 KB Output is correct
74 Correct 2 ms 3156 KB Output is correct
75 Correct 2 ms 3156 KB Output is correct
76 Correct 3 ms 3156 KB Output is correct
77 Correct 2 ms 3156 KB Output is correct
78 Correct 2 ms 3284 KB Output is correct
79 Correct 2 ms 3284 KB Output is correct
80 Correct 37 ms 10232 KB Output is correct
81 Correct 39 ms 10188 KB Output is correct
82 Correct 37 ms 10336 KB Output is correct
83 Correct 37 ms 10316 KB Output is correct
84 Correct 3 ms 3156 KB Output is correct
85 Correct 2 ms 3156 KB Output is correct
86 Correct 3 ms 3160 KB Output is correct
87 Correct 2 ms 3156 KB Output is correct
88 Correct 2 ms 3156 KB Output is correct
89 Correct 3 ms 3156 KB Output is correct
90 Correct 2 ms 3156 KB Output is correct
91 Correct 2 ms 3156 KB Output is correct
92 Correct 2 ms 3156 KB Output is correct
93 Correct 3 ms 3284 KB Output is correct
94 Correct 2 ms 3028 KB Output is correct
95 Correct 2 ms 3028 KB Output is correct
96 Correct 2 ms 3028 KB Output is correct
97 Correct 2 ms 3028 KB Output is correct
98 Correct 2 ms 3028 KB Output is correct
99 Correct 3 ms 3028 KB Output is correct
100 Correct 1 ms 3028 KB Output is correct
101 Correct 1 ms 3028 KB Output is correct
102 Correct 1 ms 3028 KB Output is correct
103 Correct 2 ms 3028 KB Output is correct
104 Correct 5 ms 3796 KB Output is correct
105 Correct 10 ms 5204 KB Output is correct
106 Correct 2 ms 3028 KB Output is correct
107 Correct 16 ms 7124 KB Output is correct
108 Correct 20 ms 9300 KB Output is correct
109 Correct 2 ms 3028 KB Output is correct
110 Correct 29 ms 10316 KB Output is correct
111 Correct 32 ms 11440 KB Output is correct
112 Correct 2 ms 3156 KB Output is correct
113 Correct 45 ms 17448 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 6872 KB Output is correct
2 Correct 15 ms 6868 KB Output is correct
3 Correct 14 ms 6872 KB Output is correct
4 Correct 14 ms 6868 KB Output is correct
5 Correct 17 ms 6868 KB Output is correct
6 Correct 16 ms 7376 KB Output is correct
7 Correct 15 ms 7000 KB Output is correct
8 Correct 14 ms 6744 KB Output is correct
9 Correct 14 ms 6736 KB Output is correct
10 Correct 16 ms 6992 KB Output is correct
11 Correct 2 ms 3152 KB Output is correct
12 Correct 4 ms 4176 KB Output is correct
13 Correct 4 ms 4300 KB Output is correct
14 Correct 4 ms 4304 KB Output is correct
15 Correct 5 ms 4300 KB Output is correct
16 Correct 4 ms 4176 KB Output is correct
17 Correct 4 ms 3920 KB Output is correct
18 Correct 4 ms 4300 KB Output is correct
19 Correct 4 ms 4176 KB Output is correct
20 Incorrect 2 ms 3028 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3028 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3028 KB Output is correct
4 Correct 1 ms 3028 KB Output is correct
5 Correct 2 ms 3028 KB Output is correct
6 Correct 2 ms 3028 KB Output is correct
7 Correct 1 ms 3028 KB Output is correct
8 Correct 1 ms 3028 KB Output is correct
9 Correct 2 ms 3028 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 1 ms 3028 KB Output is correct
12 Correct 2 ms 3028 KB Output is correct
13 Correct 2 ms 3028 KB Output is correct
14 Correct 2 ms 3028 KB Output is correct
15 Correct 1 ms 3028 KB Output is correct
16 Correct 2 ms 3028 KB Output is correct
17 Correct 1 ms 3028 KB Output is correct
18 Correct 2 ms 3028 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 1 ms 3028 KB Output is correct
21 Correct 2 ms 3028 KB Output is correct
22 Correct 2 ms 3028 KB Output is correct
23 Correct 1 ms 3028 KB Output is correct
24 Correct 2 ms 3028 KB Output is correct
25 Correct 1 ms 3028 KB Output is correct
26 Correct 2 ms 3028 KB Output is correct
27 Correct 2 ms 3156 KB Output is correct
28 Correct 3 ms 3156 KB Output is correct
29 Correct 2 ms 3028 KB Output is correct
30 Correct 2 ms 3156 KB Output is correct
31 Correct 3 ms 3156 KB Output is correct
32 Correct 2 ms 3028 KB Output is correct
33 Correct 2 ms 3156 KB Output is correct
34 Correct 3 ms 3280 KB Output is correct
35 Correct 2 ms 3028 KB Output is correct
36 Correct 2 ms 3028 KB Output is correct
37 Correct 2 ms 3028 KB Output is correct
38 Correct 2 ms 3028 KB Output is correct
39 Correct 1 ms 3028 KB Output is correct
40 Correct 2 ms 3028 KB Output is correct
41 Correct 2 ms 3028 KB Output is correct
42 Correct 2 ms 3028 KB Output is correct
43 Correct 2 ms 3028 KB Output is correct
44 Correct 2 ms 3028 KB Output is correct
45 Correct 2 ms 3028 KB Output is correct
46 Correct 2 ms 3028 KB Output is correct
47 Correct 2 ms 3028 KB Output is correct
48 Correct 2 ms 3028 KB Output is correct
49 Correct 1 ms 3028 KB Output is correct
50 Correct 1 ms 3028 KB Output is correct
51 Correct 2 ms 3028 KB Output is correct
52 Incorrect 1 ms 3028 KB Output isn't correct
53 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 31 ms 12748 KB Output is correct
2 Correct 31 ms 12496 KB Output is correct
3 Correct 23 ms 10956 KB Output is correct
4 Correct 6 ms 4564 KB Output is correct
5 Correct 5 ms 3924 KB Output is correct
6 Correct 9 ms 5204 KB Output is correct
7 Correct 2 ms 3028 KB Output is correct
8 Correct 15 ms 7124 KB Output is correct
9 Correct 22 ms 9288 KB Output is correct
10 Correct 2 ms 3028 KB Output is correct
11 Correct 29 ms 10316 KB Output is correct
12 Correct 31 ms 11372 KB Output is correct
13 Correct 2 ms 3028 KB Output is correct
14 Correct 2 ms 3028 KB Output is correct
15 Correct 2 ms 3156 KB Output is correct
16 Correct 2 ms 3028 KB Output is correct
17 Correct 1 ms 3028 KB Output is correct
18 Correct 2 ms 3028 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 1 ms 3028 KB Output is correct
21 Correct 1 ms 3028 KB Output is correct
22 Correct 2 ms 3028 KB Output is correct
23 Correct 2 ms 3028 KB Output is correct
24 Correct 1 ms 3028 KB Output is correct
25 Correct 2 ms 3028 KB Output is correct
26 Correct 2 ms 3028 KB Output is correct
27 Correct 2 ms 3028 KB Output is correct
28 Correct 1 ms 3028 KB Output is correct
29 Correct 2 ms 3028 KB Output is correct
30 Correct 1 ms 3028 KB Output is correct
31 Correct 2 ms 3028 KB Output is correct
32 Correct 2 ms 3028 KB Output is correct
33 Correct 1 ms 3028 KB Output is correct
34 Correct 2 ms 3028 KB Output is correct
35 Correct 2 ms 3028 KB Output is correct
36 Correct 1 ms 3028 KB Output is correct
37 Correct 2 ms 3028 KB Output is correct
38 Correct 1 ms 3028 KB Output is correct
39 Correct 41 ms 13004 KB Output is correct
40 Correct 31 ms 12492 KB Output is correct
41 Correct 21 ms 10956 KB Output is correct
42 Correct 5 ms 4436 KB Output is correct
43 Correct 2 ms 3028 KB Output is correct
44 Correct 2 ms 3028 KB Output is correct
45 Correct 1 ms 3028 KB Output is correct
46 Correct 2 ms 3028 KB Output is correct
47 Correct 2 ms 3028 KB Output is correct
48 Correct 2 ms 3028 KB Output is correct
49 Correct 1 ms 3028 KB Output is correct
50 Correct 2 ms 3028 KB Output is correct
51 Correct 2 ms 3028 KB Output is correct
52 Correct 2 ms 3028 KB Output is correct
53 Correct 2 ms 3028 KB Output is correct
54 Correct 2 ms 3028 KB Output is correct
55 Correct 1 ms 3028 KB Output is correct
56 Correct 1 ms 3028 KB Output is correct
57 Correct 37 ms 10316 KB Output is correct
58 Correct 37 ms 10316 KB Output is correct
59 Correct 38 ms 10188 KB Output is correct
60 Correct 38 ms 10172 KB Output is correct
61 Correct 37 ms 10316 KB Output is correct
62 Correct 37 ms 10344 KB Output is correct
63 Correct 35 ms 9932 KB Output is correct
64 Correct 41 ms 9932 KB Output is correct
65 Correct 37 ms 10188 KB Output is correct
66 Correct 36 ms 10188 KB Output is correct
67 Correct 37 ms 10192 KB Output is correct
68 Correct 42 ms 10456 KB Output is correct
69 Correct 39 ms 10444 KB Output is correct
70 Correct 39 ms 10460 KB Output is correct
71 Correct 2 ms 3044 KB Output is correct
72 Correct 2 ms 3284 KB Output is correct
73 Correct 3 ms 3156 KB Output is correct
74 Correct 2 ms 3156 KB Output is correct
75 Correct 2 ms 3156 KB Output is correct
76 Correct 3 ms 3156 KB Output is correct
77 Correct 2 ms 3156 KB Output is correct
78 Correct 2 ms 3284 KB Output is correct
79 Correct 2 ms 3284 KB Output is correct
80 Correct 37 ms 10232 KB Output is correct
81 Correct 39 ms 10188 KB Output is correct
82 Correct 37 ms 10336 KB Output is correct
83 Correct 37 ms 10316 KB Output is correct
84 Correct 3 ms 3156 KB Output is correct
85 Correct 2 ms 3156 KB Output is correct
86 Correct 3 ms 3160 KB Output is correct
87 Correct 2 ms 3156 KB Output is correct
88 Correct 2 ms 3156 KB Output is correct
89 Correct 3 ms 3156 KB Output is correct
90 Correct 2 ms 3156 KB Output is correct
91 Correct 2 ms 3156 KB Output is correct
92 Correct 2 ms 3156 KB Output is correct
93 Correct 3 ms 3284 KB Output is correct
94 Correct 2 ms 3028 KB Output is correct
95 Correct 2 ms 3028 KB Output is correct
96 Correct 2 ms 3028 KB Output is correct
97 Correct 2 ms 3028 KB Output is correct
98 Correct 2 ms 3028 KB Output is correct
99 Correct 3 ms 3028 KB Output is correct
100 Correct 1 ms 3028 KB Output is correct
101 Correct 1 ms 3028 KB Output is correct
102 Correct 1 ms 3028 KB Output is correct
103 Correct 2 ms 3028 KB Output is correct
104 Correct 5 ms 3796 KB Output is correct
105 Correct 10 ms 5204 KB Output is correct
106 Correct 2 ms 3028 KB Output is correct
107 Correct 16 ms 7124 KB Output is correct
108 Correct 20 ms 9300 KB Output is correct
109 Correct 2 ms 3028 KB Output is correct
110 Correct 29 ms 10316 KB Output is correct
111 Correct 32 ms 11440 KB Output is correct
112 Correct 2 ms 3156 KB Output is correct
113 Correct 45 ms 17448 KB Output is correct
114 Correct 15 ms 6872 KB Output is correct
115 Correct 15 ms 6868 KB Output is correct
116 Correct 14 ms 6872 KB Output is correct
117 Correct 14 ms 6868 KB Output is correct
118 Correct 17 ms 6868 KB Output is correct
119 Correct 16 ms 7376 KB Output is correct
120 Correct 15 ms 7000 KB Output is correct
121 Correct 14 ms 6744 KB Output is correct
122 Correct 14 ms 6736 KB Output is correct
123 Correct 16 ms 6992 KB Output is correct
124 Correct 2 ms 3152 KB Output is correct
125 Correct 4 ms 4176 KB Output is correct
126 Correct 4 ms 4300 KB Output is correct
127 Correct 4 ms 4304 KB Output is correct
128 Correct 5 ms 4300 KB Output is correct
129 Correct 4 ms 4176 KB Output is correct
130 Correct 4 ms 3920 KB Output is correct
131 Correct 4 ms 4300 KB Output is correct
132 Correct 4 ms 4176 KB Output is correct
133 Incorrect 2 ms 3028 KB Output isn't correct
134 Halted 0 ms 0 KB -