oj.uz

답안 #595034

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
595034 2022-07-13T09:18:45 Z pakhomovee 꿈 (IOI13_dreaming) C++17
47 / 100
 296 ms 16796 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({ vs, b1 });
        }
    }
    for (int i = 1; i < s.size(); ++i) {
        auto [u1, l1] = *s.begin();
        s.erase(s.begin());
        auto [u2, l2] = *s.begin();
        s.erase(s.begin());
        g[u1].push_back({ u2, L });
        g[u2].push_back({ u1, L });
        if (l1 < l2) {
            swap(l1, l2);
            swap(u1, u2);
        }
        s.insert({ u1, l1 + L });
    }
    return findDiamLen(0, g);
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:85:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::multiset<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |     for (int i = 1; i < s.size(); ++i) {
      |                     ~~^~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 150 ms 15324 KB Output is correct
2 Correct 157 ms 15216 KB Output is correct
3 Correct 92 ms 9408 KB Output is correct
4 Correct 18 ms 2352 KB Output is correct
5 Correct 15 ms 1392 KB Output is correct
6 Correct 33 ms 3188 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 79 ms 5236 KB Output is correct
9 Correct 87 ms 6800 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 142 ms 9492 KB Output is correct
12 Correct 158 ms 11448 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 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 150 ms 15324 KB Output is correct
2 Correct 157 ms 15216 KB Output is correct
3 Correct 92 ms 9408 KB Output is correct
4 Correct 18 ms 2352 KB Output is correct
5 Correct 15 ms 1392 KB Output is correct
6 Correct 33 ms 3188 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 79 ms 5236 KB Output is correct
9 Correct 87 ms 6800 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 142 ms 9492 KB Output is correct
12 Correct 158 ms 11448 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 162 ms 15288 KB Output is correct
40 Correct 152 ms 15328 KB Output is correct
41 Correct 97 ms 9308 KB Output is correct
42 Correct 17 ms 2300 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 212 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 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 259 ms 16572 KB Output is correct
58 Correct 296 ms 12244 KB Output is correct
59 Correct 230 ms 16168 KB Output is correct
60 Correct 249 ms 12172 KB Output is correct
61 Correct 263 ms 16336 KB Output is correct
62 Correct 216 ms 13652 KB Output is correct
63 Correct 239 ms 16744 KB Output is correct
64 Correct 246 ms 16772 KB Output is correct
65 Correct 219 ms 16776 KB Output is correct
66 Correct 245 ms 16796 KB Output is correct
67 Correct 273 ms 16280 KB Output is correct
68 Correct 267 ms 16244 KB Output is correct
69 Correct 259 ms 12536 KB Output is correct
70 Correct 265 ms 12368 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 5 ms 596 KB Output is correct
73 Correct 5 ms 724 KB Output is correct
74 Correct 5 ms 728 KB Output is correct
75 Correct 5 ms 596 KB Output is correct
76 Correct 5 ms 760 KB Output is correct
77 Correct 6 ms 724 KB Output is correct
78 Correct 5 ms 596 KB Output is correct
79 Correct 5 ms 596 KB Output is correct
80 Correct 232 ms 13116 KB Output is correct
81 Correct 245 ms 13116 KB Output is correct
82 Correct 257 ms 16348 KB Output is correct
83 Correct 218 ms 16664 KB Output is correct
84 Correct 3 ms 596 KB Output is correct
85 Correct 3 ms 596 KB Output is correct
86 Correct 3 ms 596 KB Output is correct
87 Correct 4 ms 596 KB Output is correct
88 Correct 4 ms 596 KB Output is correct
89 Correct 4 ms 596 KB Output is correct
90 Correct 5 ms 596 KB Output is correct
91 Correct 6 ms 724 KB Output is correct
92 Correct 6 ms 596 KB Output is correct
93 Correct 4 ms 596 KB Output is correct
94 Correct 0 ms 340 KB Output is correct
95 Correct 1 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 1 ms 212 KB Output is correct
99 Correct 1 ms 340 KB Output is correct
100 Correct 1 ms 316 KB Output is correct
101 Correct 0 ms 212 KB Output is correct
102 Correct 1 ms 340 KB Output is correct
103 Correct 1 ms 212 KB Output is correct
104 Correct 15 ms 1364 KB Output is correct
105 Correct 31 ms 3240 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 67 ms 5124 KB Output is correct
108 Correct 87 ms 6748 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 136 ms 9392 KB Output is correct
111 Correct 162 ms 11344 KB Output is correct
112 Correct 2 ms 340 KB Output is correct
113 Correct 247 ms 16096 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 133 ms 9924 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 340 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Incorrect 1 ms 340 KB Output isn't correct
27 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 150 ms 15324 KB Output is correct
2 Correct 157 ms 15216 KB Output is correct
3 Correct 92 ms 9408 KB Output is correct
4 Correct 18 ms 2352 KB Output is correct
5 Correct 15 ms 1392 KB Output is correct
6 Correct 33 ms 3188 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 79 ms 5236 KB Output is correct
9 Correct 87 ms 6800 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 142 ms 9492 KB Output is correct
12 Correct 158 ms 11448 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 162 ms 15288 KB Output is correct
40 Correct 152 ms 15328 KB Output is correct
41 Correct 97 ms 9308 KB Output is correct
42 Correct 17 ms 2300 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 212 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 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 340 KB Output is correct
57 Correct 259 ms 16572 KB Output is correct
58 Correct 296 ms 12244 KB Output is correct
59 Correct 230 ms 16168 KB Output is correct
60 Correct 249 ms 12172 KB Output is correct
61 Correct 263 ms 16336 KB Output is correct
62 Correct 216 ms 13652 KB Output is correct
63 Correct 239 ms 16744 KB Output is correct
64 Correct 246 ms 16772 KB Output is correct
65 Correct 219 ms 16776 KB Output is correct
66 Correct 245 ms 16796 KB Output is correct
67 Correct 273 ms 16280 KB Output is correct
68 Correct 267 ms 16244 KB Output is correct
69 Correct 259 ms 12536 KB Output is correct
70 Correct 265 ms 12368 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 5 ms 596 KB Output is correct
73 Correct 5 ms 724 KB Output is correct
74 Correct 5 ms 728 KB Output is correct
75 Correct 5 ms 596 KB Output is correct
76 Correct 5 ms 760 KB Output is correct
77 Correct 6 ms 724 KB Output is correct
78 Correct 5 ms 596 KB Output is correct
79 Correct 5 ms 596 KB Output is correct
80 Correct 232 ms 13116 KB Output is correct
81 Correct 245 ms 13116 KB Output is correct
82 Correct 257 ms 16348 KB Output is correct
83 Correct 218 ms 16664 KB Output is correct
84 Correct 3 ms 596 KB Output is correct
85 Correct 3 ms 596 KB Output is correct
86 Correct 3 ms 596 KB Output is correct
87 Correct 4 ms 596 KB Output is correct
88 Correct 4 ms 596 KB Output is correct
89 Correct 4 ms 596 KB Output is correct
90 Correct 5 ms 596 KB Output is correct
91 Correct 6 ms 724 KB Output is correct
92 Correct 6 ms 596 KB Output is correct
93 Correct 4 ms 596 KB Output is correct
94 Correct 0 ms 340 KB Output is correct
95 Correct 1 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 1 ms 212 KB Output is correct
99 Correct 1 ms 340 KB Output is correct
100 Correct 1 ms 316 KB Output is correct
101 Correct 0 ms 212 KB Output is correct
102 Correct 1 ms 340 KB Output is correct
103 Correct 1 ms 212 KB Output is correct
104 Correct 15 ms 1364 KB Output is correct
105 Correct 31 ms 3240 KB Output is correct
106 Correct 1 ms 340 KB Output is correct
107 Correct 67 ms 5124 KB Output is correct
108 Correct 87 ms 6748 KB Output is correct
109 Correct 1 ms 340 KB Output is correct
110 Correct 136 ms 9392 KB Output is correct
111 Correct 162 ms 11344 KB Output is correct
112 Correct 2 ms 340 KB Output is correct
113 Correct 247 ms 16096 KB Output is correct
114 Incorrect 133 ms 9924 KB Output isn't correct
115 Halted 0 ms 0 KB -