oj.uz

답안 #890053

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
890053 2023-12-20T12:36:55 Z Alfraganus Evacuation plan (IZhO18_plan) C++17
100 / 100
 754 ms 47472 KB 
#include <bits/stdc++.h>
using namespace std;

vector<vector<pair<int, int> > > g;
using ll = long long;
vector<int> rt;
vector<set<int> > lst;
int root(int u){
    return u == rt[u] ? u : rt[u] = root(rt[u]);
}

int main(){
    int n, m;
    cin >> n >> m;
    vector<pair<int, pair<int, int> > > ways;
    g.resize(n+1);
    rt.resize(n+1);
    lst.resize(n+1);
    for(int i = 1; i <= n; i ++) rt[i] = i;
    ways.resize(m);
    for(int i = 0, u, v, w; i < m; i ++){
        cin >> u >> v >> w;
        g[u].emplace_back(v, w);
        g[v].emplace_back(u, w);
        ways[i] = {w, {u, v}};
    }
    vector<ll> h(n+1, LLONG_MAX);
    set<pair<int, int> > q;
    int k, x;
    for(cin >> k; k > 0; k --){
        cin >> x;
        h[x] = 0;
        q.emplace(0, x);
    }
    while(!q.empty()){
        auto [w, u] = *q.begin();
        q.erase(q.begin());
        for(auto v:g[u])
            if(h[v.first] > h[u] + v.second){
                q.erase({h[v.first], v.first});
                h[v.first] = h[u] + v.second;
                q.emplace(h[v.first], v.first);
            }
    }
    for(int i = 0; i < m; i ++)
        ways[i].first = min(h[ways[i].second.first], h[ways[i].second.second]);
    sort(ways.rbegin(), ways.rend());
    
    int qu;
    cin >> qu;
    vector<ll> res(qu);
    for(int i = 0, u, v; i < qu; i ++){
        cin >> u >> v;
        lst[u].insert(i);
        lst[v].insert(i);
    }
    
    for(auto [w,y]: ways){
        auto [u, v] = y;
        u = root(u);
        v = root(v);
        if(u == v) continue;
        if(lst[u].size() > lst[v].size()) swap(u, v);
        for(int q:lst[u]){
            if(lst[v].count(q)){
                res[q] = w;
                lst[v].erase(q);
            }
            else
                lst[v].insert(q);
        }
        lst[u].clear();
        rt[u] = v;
    }
    for(ll x:res) cout << x << '\n';
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 3 ms 856 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 3 ms 856 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 238 ms 24796 KB Output is correct
17 Correct 667 ms 47312 KB Output is correct
18 Correct 46 ms 4692 KB Output is correct
19 Correct 215 ms 27076 KB Output is correct
20 Correct 699 ms 47188 KB Output is correct
21 Correct 404 ms 32240 KB Output is correct
22 Correct 168 ms 26928 KB Output is correct
23 Correct 695 ms 47132 KB Output is correct
24 Correct 690 ms 47148 KB Output is correct
25 Correct 731 ms 47192 KB Output is correct
26 Correct 229 ms 27112 KB Output is correct
27 Correct 223 ms 27080 KB Output is correct
28 Correct 215 ms 26824 KB Output is correct
29 Correct 239 ms 27080 KB Output is correct
30 Correct 224 ms 27072 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 432 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #4
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 227 ms 22480 KB Output is correct
2 Correct 591 ms 38628 KB Output is correct
3 Correct 539 ms 38736 KB Output is correct
4 Correct 86 ms 14416 KB Output is correct
5 Correct 514 ms 38588 KB Output is correct
6 Correct 553 ms 38492 KB Output is correct
7 Correct 554 ms 38812 KB Output is correct
8 Correct 572 ms 38672 KB Output is correct
9 Correct 529 ms 38632 KB Output is correct
10 Correct 522 ms 38520 KB Output is correct
11 Correct 541 ms 38740 KB Output is correct
12 Correct 594 ms 38740 KB Output is correct
13 Correct 528 ms 38536 KB Output is correct
14 Correct 577 ms 38916 KB Output is correct
15 Correct 614 ms 38620 KB Output is correct
16 Correct 548 ms 38608 KB Output is correct
17 Correct 548 ms 38604 KB Output is correct
18 Correct 562 ms 38736 KB Output is correct
19 Correct 100 ms 14420 KB Output is correct
20 Correct 542 ms 38404 KB Output is correct
21 Correct 486 ms 39760 KB Output is correct
22 Correct 134 ms 19908 KB Output is correct
23 Correct 112 ms 15144 KB Output is correct
24 Correct 116 ms 19912 KB Output is correct
25 Correct 132 ms 19912 KB Output is correct
26 Correct 106 ms 15444 KB Output is correct
27 Correct 97 ms 14788 KB Output is correct
28 Correct 110 ms 19896 KB Output is correct
29 Correct 88 ms 14380 KB Output is correct
30 Correct 109 ms 19892 KB Output is correct
31 Correct 97 ms 14492 KB Output is correct

Subtask #5
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 2 ms 604 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 3 ms 856 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 238 ms 24796 KB Output is correct
17 Correct 667 ms 47312 KB Output is correct
18 Correct 46 ms 4692 KB Output is correct
19 Correct 215 ms 27076 KB Output is correct
20 Correct 699 ms 47188 KB Output is correct
21 Correct 404 ms 32240 KB Output is correct
22 Correct 168 ms 26928 KB Output is correct
23 Correct 695 ms 47132 KB Output is correct
24 Correct 690 ms 47148 KB Output is correct
25 Correct 731 ms 47192 KB Output is correct
26 Correct 229 ms 27112 KB Output is correct
27 Correct 223 ms 27080 KB Output is correct
28 Correct 215 ms 26824 KB Output is correct
29 Correct 239 ms 27080 KB Output is correct
30 Correct 224 ms 27072 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 432 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 227 ms 22480 KB Output is correct
42 Correct 591 ms 38628 KB Output is correct
43 Correct 539 ms 38736 KB Output is correct
44 Correct 86 ms 14416 KB Output is correct
45 Correct 514 ms 38588 KB Output is correct
46 Correct 553 ms 38492 KB Output is correct
47 Correct 554 ms 38812 KB Output is correct
48 Correct 572 ms 38672 KB Output is correct
49 Correct 529 ms 38632 KB Output is correct
50 Correct 522 ms 38520 KB Output is correct
51 Correct 541 ms 38740 KB Output is correct
52 Correct 594 ms 38740 KB Output is correct
53 Correct 528 ms 38536 KB Output is correct
54 Correct 577 ms 38916 KB Output is correct
55 Correct 614 ms 38620 KB Output is correct
56 Correct 548 ms 38608 KB Output is correct
57 Correct 548 ms 38604 KB Output is correct
58 Correct 562 ms 38736 KB Output is correct
59 Correct 100 ms 14420 KB Output is correct
60 Correct 542 ms 38404 KB Output is correct
61 Correct 486 ms 39760 KB Output is correct
62 Correct 134 ms 19908 KB Output is correct
63 Correct 112 ms 15144 KB Output is correct
64 Correct 116 ms 19912 KB Output is correct
65 Correct 132 ms 19912 KB Output is correct
66 Correct 106 ms 15444 KB Output is correct
67 Correct 97 ms 14788 KB Output is correct
68 Correct 110 ms 19896 KB Output is correct
69 Correct 88 ms 14380 KB Output is correct
70 Correct 109 ms 19892 KB Output is correct
71 Correct 97 ms 14492 KB Output is correct
72 Correct 415 ms 32336 KB Output is correct
73 Correct 752 ms 47472 KB Output is correct
74 Correct 746 ms 47308 KB Output is correct
75 Correct 706 ms 47444 KB Output is correct
76 Correct 680 ms 47408 KB Output is correct
77 Correct 679 ms 47452 KB Output is correct
78 Correct 721 ms 47184 KB Output is correct
79 Correct 713 ms 47212 KB Output is correct
80 Correct 689 ms 47192 KB Output is correct
81 Correct 747 ms 47328 KB Output is correct
82 Correct 693 ms 47184 KB Output is correct
83 Correct 754 ms 47232 KB Output is correct
84 Correct 685 ms 47304 KB Output is correct
85 Correct 706 ms 47364 KB Output is correct
86 Correct 699 ms 47448 KB Output is correct
87 Correct 699 ms 47192 KB Output is correct
88 Correct 687 ms 47284 KB Output is correct
89 Correct 243 ms 26888 KB Output is correct
90 Correct 741 ms 47284 KB Output is correct
91 Correct 680 ms 47420 KB Output is correct
92 Correct 259 ms 26940 KB Output is correct
93 Correct 297 ms 27476 KB Output is correct
94 Correct 248 ms 26824 KB Output is correct
95 Correct 251 ms 27080 KB Output is correct
96 Correct 391 ms 27216 KB Output is correct
97 Correct 267 ms 26452 KB Output is correct
98 Correct 267 ms 26964 KB Output is correct
99 Correct 265 ms 26452 KB Output is correct
100 Correct 268 ms 27060 KB Output is correct