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답안 #737550

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
737550 2023-05-07T10:41:54 Z Ronin13 Relay Marathon (NOI20_relaymarathon) C++14
17 / 100
 6000 ms 138944 KB 
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;
const int nmax = 300001;
vector <ll> bit(nmax);
int bb = 50;
vector <vector <pll> > g(nmax);

int main(){
    int n, k, m; cin >> n >> m >> k;
    for(int i = 1; i <= m; i++){
        int u, v; cin >> u >> v;
        ll w; cin >> w;
        g[u].pb({v, w});
        g[v].pb({u, w});
    }

    vector <int> sources;
    for(int i = 1 ;i <= k; i++){
        int x; cin >> x;
        sources.pb(x);
    }
    vector <vector <pair<ll, int> > > G(n + 1);
    for(int s : sources){
        priority_queue <pll> q;
        vector <ll> d(n + 1, 1e18);
        vector <bool> used(n + 1, false);
        q.push({0, s});
        d[s] = 0;
        while(!q.empty()){
            int v = q.top().s;
            q.pop();
            if(used[v]) continue;
            used[v] = true;
            for(auto x : g[v]){
                int to =x.f;
                ll len = x.s;
                if(d[to] > d[v] + len){
                    d[to] = d[v] + len;
                    q.push({-d[to], to});
                }
            }
        }
        vector <pll> vec;
        for(auto to : sources){
            vec.epb(d[to], to);
        }
        sort(vec.begin(), vec.end());
        for(int j = 0; j < min(k, bb); j++){
            G[s].pb(vec[j]);
        }
    }
    vector <pair<ll, pii> > vec;
    for(int i = 1; i <= n; i++){
        for(auto to : G[i]){
            vec.pb({to.f, {to.s, i}});
        }
    }
    sort(vec.begin(), vec.end());
    int cnt[n + 1];
    fill(cnt, cnt + n + 1, 0);
    vector <pair<ll, pii> > cand;
    for(auto to : vec){
        if(cand.size() > 1000) break;
        if(cnt[to.s.f] < bb && cnt[to.s.s] < bb){
            cand.pb(to);
            cnt[to.s.f]++;
            cnt[to.s.s]++;
        }
    }
   // cout << 1;
    ll ans = 1e18;
    for(int i = 0; i < cand.size(); i++){
        for(int j =0; j < cand.size(); j++){
            set <int> st;
            st.insert(cand[i].s.f);
            st.insert(cand[i].s.s);
            st.insert(cand[j].s.f);
            st.insert(cand[j].s.s);
            if(st.size() == 4){
                ans = min(ans, cand[i].f + cand[j].f);
            }
        }
    }
    cout << ans;
    return 0;
}

Compilation message

RelayMarathon.cpp: In function 'int main()':
RelayMarathon.cpp:80:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |     for(int i = 0; i < cand.size(); i++){
      |                    ~~^~~~~~~~~~~~~
RelayMarathon.cpp:81:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |         for(int j =0; j < cand.size(); j++){
      |                       ~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 9684 KB Output is correct
2 Correct 29 ms 9740 KB Output is correct
3 Correct 8 ms 9724 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 19 ms 9612 KB Output is correct
6 Correct 9 ms 9684 KB Output is correct
7 Correct 46 ms 9812 KB Output is correct
8 Correct 8 ms 9684 KB Output is correct
9 Correct 7 ms 9684 KB Output is correct
10 Correct 24 ms 9684 KB Output is correct
11 Correct 129 ms 9812 KB Output is correct
12 Correct 87 ms 9684 KB Output is correct
13 Correct 118 ms 9812 KB Output is correct
14 Correct 6 ms 9684 KB Output is correct
15 Correct 122 ms 9836 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 127 ms 9812 KB Output is correct
18 Correct 5 ms 9716 KB Output is correct
19 Correct 127 ms 9812 KB Output is correct
20 Correct 52 ms 9684 KB Output is correct
21 Correct 101 ms 9812 KB Output is correct
22 Correct 12 ms 9684 KB Output is correct
23 Correct 134 ms 9820 KB Output is correct
24 Correct 24 ms 9684 KB Output is correct
25 Correct 15 ms 9684 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 11 ms 9684 KB Output is correct
28 Correct 126 ms 9880 KB Output is correct
29 Correct 56 ms 9812 KB Output is correct
30 Correct 63 ms 9812 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 9684 KB Output is correct
2 Correct 29 ms 9740 KB Output is correct
3 Correct 8 ms 9724 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 19 ms 9612 KB Output is correct
6 Correct 9 ms 9684 KB Output is correct
7 Correct 46 ms 9812 KB Output is correct
8 Correct 8 ms 9684 KB Output is correct
9 Correct 7 ms 9684 KB Output is correct
10 Correct 24 ms 9684 KB Output is correct
11 Correct 129 ms 9812 KB Output is correct
12 Correct 87 ms 9684 KB Output is correct
13 Correct 118 ms 9812 KB Output is correct
14 Correct 6 ms 9684 KB Output is correct
15 Correct 122 ms 9836 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 127 ms 9812 KB Output is correct
18 Correct 5 ms 9716 KB Output is correct
19 Correct 127 ms 9812 KB Output is correct
20 Correct 52 ms 9684 KB Output is correct
21 Correct 101 ms 9812 KB Output is correct
22 Correct 12 ms 9684 KB Output is correct
23 Correct 134 ms 9820 KB Output is correct
24 Correct 24 ms 9684 KB Output is correct
25 Correct 15 ms 9684 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 11 ms 9684 KB Output is correct
28 Correct 126 ms 9880 KB Output is correct
29 Correct 56 ms 9812 KB Output is correct
30 Correct 63 ms 9812 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 7 ms 9684 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 5 ms 9684 KB Output is correct
35 Correct 5 ms 9684 KB Output is correct
36 Correct 152 ms 10676 KB Output is correct
37 Correct 182 ms 11044 KB Output is correct
38 Correct 14 ms 9684 KB Output is correct
39 Correct 169 ms 14268 KB Output is correct
40 Correct 192 ms 11268 KB Output is correct
41 Correct 10 ms 9684 KB Output is correct
42 Correct 208 ms 11560 KB Output is correct
43 Correct 143 ms 10416 KB Output is correct
44 Correct 6 ms 9684 KB Output is correct
45 Correct 12 ms 9740 KB Output is correct
46 Correct 361 ms 14836 KB Output is correct
47 Correct 180 ms 10896 KB Output is correct
48 Correct 193 ms 14280 KB Output is correct
49 Correct 289 ms 14504 KB Output is correct
50 Correct 8 ms 9684 KB Output is correct
51 Correct 128 ms 10424 KB Output is correct
52 Correct 10 ms 9684 KB Output is correct
53 Correct 170 ms 12012 KB Output is correct
54 Correct 196 ms 14276 KB Output is correct
55 Correct 15 ms 9684 KB Output is correct
56 Correct 6 ms 9684 KB Output is correct
57 Correct 16 ms 9684 KB Output is correct
58 Correct 266 ms 14512 KB Output is correct
59 Correct 5 ms 9684 KB Output is correct
60 Correct 142 ms 10480 KB Output is correct

Subtask #3
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 449 ms 17224 KB Output is correct
2 Correct 106 ms 13732 KB Output is correct
3 Execution timed out 6040 ms 138944 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 58.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 9684 KB Output is correct
2 Correct 29 ms 9740 KB Output is correct
3 Correct 8 ms 9724 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 19 ms 9612 KB Output is correct
6 Correct 9 ms 9684 KB Output is correct
7 Correct 46 ms 9812 KB Output is correct
8 Correct 8 ms 9684 KB Output is correct
9 Correct 7 ms 9684 KB Output is correct
10 Correct 24 ms 9684 KB Output is correct
11 Correct 129 ms 9812 KB Output is correct
12 Correct 87 ms 9684 KB Output is correct
13 Correct 118 ms 9812 KB Output is correct
14 Correct 6 ms 9684 KB Output is correct
15 Correct 122 ms 9836 KB Output is correct
16 Correct 6 ms 9684 KB Output is correct
17 Correct 127 ms 9812 KB Output is correct
18 Correct 5 ms 9716 KB Output is correct
19 Correct 127 ms 9812 KB Output is correct
20 Correct 52 ms 9684 KB Output is correct
21 Correct 101 ms 9812 KB Output is correct
22 Correct 12 ms 9684 KB Output is correct
23 Correct 134 ms 9820 KB Output is correct
24 Correct 24 ms 9684 KB Output is correct
25 Correct 15 ms 9684 KB Output is correct
26 Correct 5 ms 9684 KB Output is correct
27 Correct 11 ms 9684 KB Output is correct
28 Correct 126 ms 9880 KB Output is correct
29 Correct 56 ms 9812 KB Output is correct
30 Correct 63 ms 9812 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 7 ms 9684 KB Output is correct
33 Correct 5 ms 9684 KB Output is correct
34 Correct 5 ms 9684 KB Output is correct
35 Correct 5 ms 9684 KB Output is correct
36 Correct 152 ms 10676 KB Output is correct
37 Correct 182 ms 11044 KB Output is correct
38 Correct 14 ms 9684 KB Output is correct
39 Correct 169 ms 14268 KB Output is correct
40 Correct 192 ms 11268 KB Output is correct
41 Correct 10 ms 9684 KB Output is correct
42 Correct 208 ms 11560 KB Output is correct
43 Correct 143 ms 10416 KB Output is correct
44 Correct 6 ms 9684 KB Output is correct
45 Correct 12 ms 9740 KB Output is correct
46 Correct 361 ms 14836 KB Output is correct
47 Correct 180 ms 10896 KB Output is correct
48 Correct 193 ms 14280 KB Output is correct
49 Correct 289 ms 14504 KB Output is correct
50 Correct 8 ms 9684 KB Output is correct
51 Correct 128 ms 10424 KB Output is correct
52 Correct 10 ms 9684 KB Output is correct
53 Correct 170 ms 12012 KB Output is correct
54 Correct 196 ms 14276 KB Output is correct
55 Correct 15 ms 9684 KB Output is correct
56 Correct 6 ms 9684 KB Output is correct
57 Correct 16 ms 9684 KB Output is correct
58 Correct 266 ms 14512 KB Output is correct
59 Correct 5 ms 9684 KB Output is correct
60 Correct 142 ms 10480 KB Output is correct
61 Correct 449 ms 17224 KB Output is correct
62 Correct 106 ms 13732 KB Output is correct
63 Execution timed out 6040 ms 138944 KB Time limit exceeded
64 Halted 0 ms 0 KB -