oj.uz

Submission #969949

# Submission time Handle Problem Language Result Execution time Memory
969949 2024-04-26T01:38:00 Z njoop Evacuation plan (IZhO18_plan) C++14
100 / 100
 705 ms 64352 KB 
#include <bits/stdc++.h>
#define pi pair<int, int>
#define ti tuple<int, int, int>
using namespace std;

int n, m, dis[100010], rt[100010], ans[100010], u, v, w, q, cu, cv, cw, s, t;
vector<pi> g[100010];
vector<int> st, en;
set<int> pa[100010];
priority_queue<pi, vector<pi>, greater<pi>> pq;
priority_queue<ti> ed;

int fr(int no) {
    if(rt[no] == no) return no;
    else return rt[no] = fr(rt[no]);
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> m;
    while(m--) {
        cin >> u >> v >> w;
        g[u].push_back({w, v});
        g[v].push_back({w, u});
        st.push_back(u);
        en.push_back(v);

    }
    fill(dis, dis+100010, 1e9);
    cin >> q;
    while(q--) {
        cin >> u;
        pq.push({0, u});
    }
    cin >> q;
    for(int i=1; i<=q; i++) {
        cin >> s >> t;
        pa[s].insert(i);
        pa[t].insert(i);
    }
    while(!pq.empty()) {
        cu = pq.top().second;
        cw = pq.top().first;
        pq.pop();
        if(dis[cu] <= cw) {
            continue;
        }
        dis[cu] = cw;
        for(auto i: g[cu]) {
            pq.push({i.first+cw, i.second});
        }
    }
    
    for(int i=0; i<st.size(); i++) {
        ed.push({min(dis[st[i]], dis[en[i]]), st[i], en[i]}); 
    }
    for(int i=0; i<=n; i++) {
        rt[i] = i;
    }
    while(!ed.empty()) {
        cw = get<0>(ed.top());
        cu = fr(get<1>(ed.top()));
        cv = fr(get<2>(ed.top()));
        ed.pop();
        if(rt[cu] == rt[cv]) continue;
        if(pa[cu].size() < pa[cv].size()) {
            swap(cu, cv);
        }
        for(auto i: pa[cv]) {
            if(pa[cu].count(i)) {
                ans[i] = cw;
                pa[cu].erase(i);
            } else {
                pa[cu].insert(i);
            }
        }
        rt[cv] = cu;
    }
    for(int i=1; i<=q; i++) {
        cout << ans[i] << "\n";
    }
    return 0;
}

Compilation message

plan.cpp: In function 'int main()':
plan.cpp:54:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i=0; i<st.size(); i++) {
      |                  ~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7768 KB Output is correct
2 Correct 5 ms 8028 KB Output is correct
3 Correct 3 ms 8028 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 4 ms 8028 KB Output is correct
6 Correct 3 ms 8028 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7724 KB Output is correct
9 Correct 3 ms 8028 KB Output is correct
10 Correct 3 ms 8092 KB Output is correct
11 Correct 3 ms 8016 KB Output is correct
12 Correct 5 ms 8284 KB Output is correct
13 Correct 3 ms 8032 KB Output is correct
14 Correct 3 ms 8028 KB Output is correct
15 Correct 3 ms 8028 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7768 KB Output is correct
2 Correct 5 ms 8028 KB Output is correct
3 Correct 3 ms 8028 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 4 ms 8028 KB Output is correct
6 Correct 3 ms 8028 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7724 KB Output is correct
9 Correct 3 ms 8028 KB Output is correct
10 Correct 3 ms 8092 KB Output is correct
11 Correct 3 ms 8016 KB Output is correct
12 Correct 5 ms 8284 KB Output is correct
13 Correct 3 ms 8032 KB Output is correct
14 Correct 3 ms 8028 KB Output is correct
15 Correct 3 ms 8028 KB Output is correct
16 Correct 180 ms 27452 KB Output is correct
17 Correct 628 ms 61860 KB Output is correct
18 Correct 41 ms 12368 KB Output is correct
19 Correct 162 ms 28728 KB Output is correct
20 Correct 638 ms 61580 KB Output is correct
21 Correct 307 ms 38912 KB Output is correct
22 Correct 97 ms 27200 KB Output is correct
23 Correct 640 ms 61456 KB Output is correct
24 Correct 593 ms 61080 KB Output is correct
25 Correct 611 ms 61332 KB Output is correct
26 Correct 215 ms 28812 KB Output is correct
27 Correct 163 ms 28472 KB Output is correct
28 Correct 171 ms 28404 KB Output is correct
29 Correct 176 ms 28656 KB Output is correct
30 Correct 155 ms 28728 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7772 KB Output is correct
2 Correct 2 ms 7772 KB Output is correct
3 Correct 2 ms 7772 KB Output is correct
4 Correct 3 ms 7772 KB Output is correct
5 Correct 2 ms 7768 KB Output is correct
6 Correct 2 ms 7772 KB Output is correct
7 Correct 3 ms 7772 KB Output is correct
8 Correct 2 ms 7772 KB Output is correct
9 Correct 2 ms 7772 KB Output is correct
10 Correct 3 ms 7772 KB Output is correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 170 ms 26288 KB Output is correct
2 Correct 460 ms 52628 KB Output is correct
3 Correct 502 ms 52128 KB Output is correct
4 Correct 44 ms 15288 KB Output is correct
5 Correct 436 ms 50956 KB Output is correct
6 Correct 506 ms 52328 KB Output is correct
7 Correct 451 ms 52888 KB Output is correct
8 Correct 475 ms 52472 KB Output is correct
9 Correct 486 ms 51356 KB Output is correct
10 Correct 459 ms 51840 KB Output is correct
11 Correct 476 ms 51796 KB Output is correct
12 Correct 445 ms 52748 KB Output is correct
13 Correct 511 ms 51076 KB Output is correct
14 Correct 465 ms 52392 KB Output is correct
15 Correct 457 ms 51852 KB Output is correct
16 Correct 446 ms 51200 KB Output is correct
17 Correct 469 ms 52888 KB Output is correct
18 Correct 506 ms 52056 KB Output is correct
19 Correct 45 ms 15264 KB Output is correct
20 Correct 479 ms 51280 KB Output is correct
21 Correct 491 ms 52872 KB Output is correct
22 Correct 87 ms 17220 KB Output is correct
23 Correct 67 ms 15676 KB Output is correct
24 Correct 71 ms 17216 KB Output is correct
25 Correct 72 ms 17220 KB Output is correct
26 Correct 72 ms 15844 KB Output is correct
27 Correct 47 ms 15292 KB Output is correct
28 Correct 69 ms 17220 KB Output is correct
29 Correct 58 ms 15360 KB Output is correct
30 Correct 75 ms 17364 KB Output is correct
31 Correct 47 ms 15380 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7768 KB Output is correct
2 Correct 5 ms 8028 KB Output is correct
3 Correct 3 ms 8028 KB Output is correct
4 Correct 2 ms 7772 KB Output is correct
5 Correct 4 ms 8028 KB Output is correct
6 Correct 3 ms 8028 KB Output is correct
7 Correct 2 ms 7772 KB Output is correct
8 Correct 2 ms 7724 KB Output is correct
9 Correct 3 ms 8028 KB Output is correct
10 Correct 3 ms 8092 KB Output is correct
11 Correct 3 ms 8016 KB Output is correct
12 Correct 5 ms 8284 KB Output is correct
13 Correct 3 ms 8032 KB Output is correct
14 Correct 3 ms 8028 KB Output is correct
15 Correct 3 ms 8028 KB Output is correct
16 Correct 180 ms 27452 KB Output is correct
17 Correct 628 ms 61860 KB Output is correct
18 Correct 41 ms 12368 KB Output is correct
19 Correct 162 ms 28728 KB Output is correct
20 Correct 638 ms 61580 KB Output is correct
21 Correct 307 ms 38912 KB Output is correct
22 Correct 97 ms 27200 KB Output is correct
23 Correct 640 ms 61456 KB Output is correct
24 Correct 593 ms 61080 KB Output is correct
25 Correct 611 ms 61332 KB Output is correct
26 Correct 215 ms 28812 KB Output is correct
27 Correct 163 ms 28472 KB Output is correct
28 Correct 171 ms 28404 KB Output is correct
29 Correct 176 ms 28656 KB Output is correct
30 Correct 155 ms 28728 KB Output is correct
31 Correct 2 ms 7772 KB Output is correct
32 Correct 2 ms 7772 KB Output is correct
33 Correct 2 ms 7772 KB Output is correct
34 Correct 3 ms 7772 KB Output is correct
35 Correct 2 ms 7768 KB Output is correct
36 Correct 2 ms 7772 KB Output is correct
37 Correct 3 ms 7772 KB Output is correct
38 Correct 2 ms 7772 KB Output is correct
39 Correct 2 ms 7772 KB Output is correct
40 Correct 3 ms 7772 KB Output is correct
41 Correct 170 ms 26288 KB Output is correct
42 Correct 460 ms 52628 KB Output is correct
43 Correct 502 ms 52128 KB Output is correct
44 Correct 44 ms 15288 KB Output is correct
45 Correct 436 ms 50956 KB Output is correct
46 Correct 506 ms 52328 KB Output is correct
47 Correct 451 ms 52888 KB Output is correct
48 Correct 475 ms 52472 KB Output is correct
49 Correct 486 ms 51356 KB Output is correct
50 Correct 459 ms 51840 KB Output is correct
51 Correct 476 ms 51796 KB Output is correct
52 Correct 445 ms 52748 KB Output is correct
53 Correct 511 ms 51076 KB Output is correct
54 Correct 465 ms 52392 KB Output is correct
55 Correct 457 ms 51852 KB Output is correct
56 Correct 446 ms 51200 KB Output is correct
57 Correct 469 ms 52888 KB Output is correct
58 Correct 506 ms 52056 KB Output is correct
59 Correct 45 ms 15264 KB Output is correct
60 Correct 479 ms 51280 KB Output is correct
61 Correct 491 ms 52872 KB Output is correct
62 Correct 87 ms 17220 KB Output is correct
63 Correct 67 ms 15676 KB Output is correct
64 Correct 71 ms 17216 KB Output is correct
65 Correct 72 ms 17220 KB Output is correct
66 Correct 72 ms 15844 KB Output is correct
67 Correct 47 ms 15292 KB Output is correct
68 Correct 69 ms 17220 KB Output is correct
69 Correct 58 ms 15360 KB Output is correct
70 Correct 75 ms 17364 KB Output is correct
71 Correct 47 ms 15380 KB Output is correct
72 Correct 380 ms 39916 KB Output is correct
73 Correct 627 ms 61100 KB Output is correct
74 Correct 652 ms 62792 KB Output is correct
75 Correct 656 ms 63084 KB Output is correct
76 Correct 643 ms 62004 KB Output is correct
77 Correct 670 ms 61700 KB Output is correct
78 Correct 702 ms 63064 KB Output is correct
79 Correct 701 ms 62676 KB Output is correct
80 Correct 622 ms 61788 KB Output is correct
81 Correct 654 ms 61596 KB Output is correct
82 Correct 659 ms 62416 KB Output is correct
83 Correct 646 ms 62508 KB Output is correct
84 Correct 638 ms 62796 KB Output is correct
85 Correct 629 ms 63004 KB Output is correct
86 Correct 665 ms 61612 KB Output is correct
87 Correct 668 ms 63644 KB Output is correct
88 Correct 705 ms 63240 KB Output is correct
89 Correct 180 ms 29044 KB Output is correct
90 Correct 644 ms 61904 KB Output is correct
91 Correct 679 ms 64352 KB Output is correct
92 Correct 217 ms 30104 KB Output is correct
93 Correct 339 ms 55208 KB Output is correct
94 Correct 204 ms 29972 KB Output is correct
95 Correct 219 ms 30072 KB Output is correct
96 Correct 321 ms 59320 KB Output is correct
97 Correct 207 ms 31156 KB Output is correct
98 Correct 243 ms 30052 KB Output is correct
99 Correct 201 ms 31164 KB Output is correct
100 Correct 231 ms 30256 KB Output is correct