oj.uz

답안 #595039

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
595039 2022-07-13T09:30:04 Z pakhomovee 꿈 (IOI13_dreaming) C++17
47 / 100
 1000 ms 16808 KB 
#include "dreaming.h"
#include <vector>
#include <unordered_map>
#include <deque>
#include <iostream>
#include <set>

using namespace std;

const int maxn = 1e5;
const int inf = 2e9;
bool used[maxn];
int cnt = 0;

unordered_map<int, int> dst(int v, vector<vector<pair<int, int>>> &g) {
    unordered_map<int, int> d;
    deque<int> q;
    q.push_back(v);
    d[v] = 0;
    while (!q.empty()) {
        int v = q.front();
        q.pop_front();
        for (auto [u, w] : g[v]) {
            if (!d.count(u)) {
                d[u] = d[v] + w;
                q.push_back(u);
            }
        }
    }
    return d;
}

pair<int, int> goFar(int v, vector<vector<pair<int, int>>> &g) {
    auto d1 = dst(v, g);
    int best = v;
    for (auto [u, x] : d1) {
        if (d1[best] < x) {
            best = u;
        }
        ++cnt;
        used[u] = true;
    }
    return { best, d1[best] };
}

pair<int, int> findDiam(int v, vector<vector<pair<int, int>>> &g) {
    int leafe = goFar(v, g).first;
    int best = goFar(leafe, g).first;
    int best1 = goFar(best, g).first;
    return { best, best1 };
}

int findDiamLen(int v, vector<vector<pair<int, int>>> &g) {
    int leafe = goFar(v, g).first;
    int best = goFar(leafe, g).first;
    return goFar(best, g).second;
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    vector<vector<pair<int, int>>> g(N);
    for (int i = 0; i < M; ++i) {
        int u = A[i], v = B[i];
        g[u].push_back({ v, T[i] });
        g[v].push_back({ u, T[i] });
    }
    vector<pair<int, int>> dims;
    multiset<pair<int, int>> s;
    for (int i = 0; i < N; ++i) {
        if (!used[i]) {
            cnt = 0;
            auto [u, v] = findDiam(i, g);
            auto d1 = dst(u, g);
            auto d2 = dst(v, g);
            int vs = -1;
            int b1 = inf;
            for (auto [u, l] : d1) {
                if (b1 > max(l, d2[u])) {
                    b1 = max(l, d2[u]);
                    vs = u;
                }
            }
            s.insert({ b1, vs });
        }
    }
    while (s.size() != 1) {
        auto [l1, u1] = *s.begin();
        s.erase(s.begin());
        auto [l2, u2] = *s.rbegin();
        auto pt = s.end();
        --pt;
        //cout << "UNITE " << u1 << ' ' << u2 << endl;
        s.erase(pt);
        g[u1].push_back({ u2, L });
        g[u2].push_back({ u1, L });
        if (l1 < l2) {
            swap(l1, l2);
            swap(u1, u2);
        }
        auto [u, v] = findDiam(u1, g);
        auto d1 = dst(u, g);
        auto d2 = dst(v, g);
        int vs = -1;
        int b1 = inf;
        for (auto [u, l] : d1) {
            if (b1 > max(l, d2[u])) {
                b1 = max(l, d2[u]);
                vs = u;
            }
        }
        s.insert({ b1, vs });
    }
    return findDiamLen(0, g);
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 235 ms 15344 KB Output is correct
2 Correct 260 ms 15428 KB Output is correct
3 Correct 142 ms 9312 KB Output is correct
4 Correct 28 ms 2332 KB Output is correct
5 Correct 23 ms 1780 KB Output is correct
6 Correct 49 ms 3240 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 129 ms 6160 KB Output is correct
9 Correct 134 ms 8212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 222 ms 10688 KB Output is correct
12 Correct 265 ms 12048 KB Output is correct
13 Correct 2 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 235 ms 15344 KB Output is correct
2 Correct 260 ms 15428 KB Output is correct
3 Correct 142 ms 9312 KB Output is correct
4 Correct 28 ms 2332 KB Output is correct
5 Correct 23 ms 1780 KB Output is correct
6 Correct 49 ms 3240 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 129 ms 6160 KB Output is correct
9 Correct 134 ms 8212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 222 ms 10688 KB Output is correct
12 Correct 265 ms 12048 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 261 ms 15328 KB Output is correct
40 Correct 234 ms 15308 KB Output is correct
41 Correct 153 ms 9328 KB Output is correct
42 Correct 26 ms 2352 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 360 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 0 ms 340 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 412 ms 16764 KB Output is correct
58 Correct 381 ms 16664 KB Output is correct
59 Correct 379 ms 16732 KB Output is correct
60 Correct 363 ms 16568 KB Output is correct
61 Correct 347 ms 16780 KB Output is correct
62 Correct 384 ms 16780 KB Output is correct
63 Correct 332 ms 16752 KB Output is correct
64 Correct 366 ms 16800 KB Output is correct
65 Correct 340 ms 16752 KB Output is correct
66 Correct 436 ms 16808 KB Output is correct
67 Correct 372 ms 16604 KB Output is correct
68 Correct 476 ms 16748 KB Output is correct
69 Correct 398 ms 16636 KB Output is correct
70 Correct 465 ms 16604 KB Output is correct
71 Correct 0 ms 336 KB Output is correct
72 Correct 8 ms 724 KB Output is correct
73 Correct 7 ms 724 KB Output is correct
74 Correct 6 ms 724 KB Output is correct
75 Correct 7 ms 724 KB Output is correct
76 Correct 6 ms 724 KB Output is correct
77 Correct 8 ms 724 KB Output is correct
78 Correct 7 ms 724 KB Output is correct
79 Correct 7 ms 724 KB Output is correct
80 Correct 357 ms 16640 KB Output is correct
81 Correct 363 ms 16732 KB Output is correct
82 Correct 393 ms 16712 KB Output is correct
83 Correct 378 ms 16700 KB Output is correct
84 Correct 5 ms 724 KB Output is correct
85 Correct 4 ms 596 KB Output is correct
86 Correct 5 ms 724 KB Output is correct
87 Correct 6 ms 724 KB Output is correct
88 Correct 7 ms 724 KB Output is correct
89 Correct 7 ms 724 KB Output is correct
90 Correct 6 ms 724 KB Output is correct
91 Correct 7 ms 724 KB Output is correct
92 Correct 6 ms 724 KB Output is correct
93 Correct 6 ms 724 KB Output is correct
94 Correct 0 ms 340 KB Output is correct
95 Correct 0 ms 340 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 0 ms 212 KB Output is correct
99 Correct 0 ms 340 KB Output is correct
100 Correct 1 ms 212 KB Output is correct
101 Correct 0 ms 340 KB Output is correct
102 Correct 0 ms 212 KB Output is correct
103 Correct 1 ms 212 KB Output is correct
104 Correct 25 ms 1768 KB Output is correct
105 Correct 44 ms 3164 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 138 ms 6148 KB Output is correct
108 Correct 134 ms 8136 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 201 ms 10716 KB Output is correct
111 Correct 222 ms 12080 KB Output is correct
112 Correct 2 ms 340 KB Output is correct
113 Correct 466 ms 16316 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1088 ms 8128 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 44 ms 456 KB Output is correct
27 Correct 173 ms 608 KB Output is correct
28 Correct 454 ms 828 KB Output is correct
29 Correct 35 ms 468 KB Output is correct
30 Correct 141 ms 584 KB Output is correct
31 Correct 347 ms 808 KB Output is correct
32 Correct 28 ms 460 KB Output is correct
33 Correct 113 ms 652 KB Output is correct
34 Correct 294 ms 728 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 308 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 3 ms 340 KB Output is correct
41 Correct 3 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 312 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 312 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 316 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 4 ms 708 KB Output is correct
55 Correct 5 ms 704 KB Output is correct
56 Correct 762 ms 832 KB Output is correct
57 Execution timed out 1079 ms 828 KB Time limit exceeded
58 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 235 ms 15344 KB Output is correct
2 Correct 260 ms 15428 KB Output is correct
3 Correct 142 ms 9312 KB Output is correct
4 Correct 28 ms 2332 KB Output is correct
5 Correct 23 ms 1780 KB Output is correct
6 Correct 49 ms 3240 KB Output is correct
7 Correct 1 ms 316 KB Output is correct
8 Correct 129 ms 6160 KB Output is correct
9 Correct 134 ms 8212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 222 ms 10688 KB Output is correct
12 Correct 265 ms 12048 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 261 ms 15328 KB Output is correct
40 Correct 234 ms 15308 KB Output is correct
41 Correct 153 ms 9328 KB Output is correct
42 Correct 26 ms 2352 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 360 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 0 ms 340 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 412 ms 16764 KB Output is correct
58 Correct 381 ms 16664 KB Output is correct
59 Correct 379 ms 16732 KB Output is correct
60 Correct 363 ms 16568 KB Output is correct
61 Correct 347 ms 16780 KB Output is correct
62 Correct 384 ms 16780 KB Output is correct
63 Correct 332 ms 16752 KB Output is correct
64 Correct 366 ms 16800 KB Output is correct
65 Correct 340 ms 16752 KB Output is correct
66 Correct 436 ms 16808 KB Output is correct
67 Correct 372 ms 16604 KB Output is correct
68 Correct 476 ms 16748 KB Output is correct
69 Correct 398 ms 16636 KB Output is correct
70 Correct 465 ms 16604 KB Output is correct
71 Correct 0 ms 336 KB Output is correct
72 Correct 8 ms 724 KB Output is correct
73 Correct 7 ms 724 KB Output is correct
74 Correct 6 ms 724 KB Output is correct
75 Correct 7 ms 724 KB Output is correct
76 Correct 6 ms 724 KB Output is correct
77 Correct 8 ms 724 KB Output is correct
78 Correct 7 ms 724 KB Output is correct
79 Correct 7 ms 724 KB Output is correct
80 Correct 357 ms 16640 KB Output is correct
81 Correct 363 ms 16732 KB Output is correct
82 Correct 393 ms 16712 KB Output is correct
83 Correct 378 ms 16700 KB Output is correct
84 Correct 5 ms 724 KB Output is correct
85 Correct 4 ms 596 KB Output is correct
86 Correct 5 ms 724 KB Output is correct
87 Correct 6 ms 724 KB Output is correct
88 Correct 7 ms 724 KB Output is correct
89 Correct 7 ms 724 KB Output is correct
90 Correct 6 ms 724 KB Output is correct
91 Correct 7 ms 724 KB Output is correct
92 Correct 6 ms 724 KB Output is correct
93 Correct 6 ms 724 KB Output is correct
94 Correct 0 ms 340 KB Output is correct
95 Correct 0 ms 340 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 0 ms 212 KB Output is correct
99 Correct 0 ms 340 KB Output is correct
100 Correct 1 ms 212 KB Output is correct
101 Correct 0 ms 340 KB Output is correct
102 Correct 0 ms 212 KB Output is correct
103 Correct 1 ms 212 KB Output is correct
104 Correct 25 ms 1768 KB Output is correct
105 Correct 44 ms 3164 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 138 ms 6148 KB Output is correct
108 Correct 134 ms 8136 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 201 ms 10716 KB Output is correct
111 Correct 222 ms 12080 KB Output is correct
112 Correct 2 ms 340 KB Output is correct
113 Correct 466 ms 16316 KB Output is correct
114 Execution timed out 1088 ms 8128 KB Time limit exceeded
115 Halted 0 ms 0 KB -