oj.uz

Submission #737570

# Submission time Handle Problem Language Result Execution time Memory
737570 2023-05-07T11:06:44 Z Ronin13 Relay Marathon (NOI20_relaymarathon) C++14
17 / 100
 6000 ms 181356 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);

vector <vector <pll> > dp(nmax);
map <pii, bool> used;
vector <vector <pll> > g(nmax);
priority_queue <pair<ll, pii> > q;
void upd(int u, int x, ll len){
    bool tt;
    tt = false;
    for(int j = 0; j < 5; j++){
        if(dp[u][j].s == x){
            tt = true;
            if(len > dp[u][j].f) continue;
            dp[u][j].f = len;
            q.push({-dp[u][j].f, {u, dp[u][j].s}});
        }
    }
    if(!tt){
        if(len < dp[u].back().f)
        dp[u].pb({len, x}), q.push({-len, {u, x}});
    }
    sort(dp[u].begin(), dp[u].end());
    if(dp[u].size() > 5)
        dp[u].pop_back();

}

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);
    }
   // cout << 1;
    for(int i = 1; i <= n; i++){
        for(int j = 0; j < 5; j++)
        dp[i].pb({1e18, 0});
    }
   // cout << 1;
    for(int to : sources){
        dp[to][0] = {0, to};
        q.push({0, {to, to}});
    }
    //cout << 1;
    while(!q.empty()){
        int v = q.top().s.f, y = q.top().s.s;
        ll val = -q.top().f;
        q.pop();
        if(used[{v, y}]) continue;
        used[{v, y}] = true;
        for(auto ed : g[v]){
            int to = ed.f;
            ll len = ed.s + val;
            upd(to, y, len);
        }
    }
    vector <pair<ll, pii> > vec;
    for(int to : sources){
        for(int j = 0; j < 5; j++){
            if(dp[to][j].f != 1e18)
            vec.pb({dp[to][j].f, {to, dp[to][j].s}});
        }
    }
    sort(vec.begin(), vec.end());
    int cnt[n + 1];
    fill(cnt, cnt + n + 1, 0);
    set <pii> st;
    vector <pair<ll, pii> > cand;
    for(auto to : vec){
        if(cand.size() > 30) break;
        if(to.s.f == to.s.s) continue;
        if(st.find({to.s.f, to.s.s}) != st.end()) continue;
        st.insert({to.s.f, to.s.s});
        if(cnt[to.s.f] < 5 && cnt[to.s.s] < 5){
            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:101:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::pair<int, int> >, std::allocator<std::pair<long long int, std::pair<int, int> > > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |     for(int i = 0; i < cand.size(); i++){
      |                    ~~^~~~~~~~~~~~~
RelayMarathon.cpp:102:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::pair<int, int> >, std::allocator<std::pair<long long int, std::pair<int, int> > > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |         for(int j =0; j < cand.size(); j++){
      |                       ~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16852 KB Output is correct
3 Correct 8 ms 16724 KB Output is correct
4 Correct 7 ms 16724 KB Output is correct
5 Correct 8 ms 16760 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 12 ms 16844 KB Output is correct
8 Correct 14 ms 16764 KB Output is correct
9 Correct 9 ms 16660 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 9 ms 16724 KB Output is correct
12 Correct 9 ms 16724 KB Output is correct
13 Correct 10 ms 16808 KB Output is correct
14 Correct 11 ms 16820 KB Output is correct
15 Correct 11 ms 16852 KB Output is correct
16 Correct 9 ms 16724 KB Output is correct
17 Correct 10 ms 16852 KB Output is correct
18 Correct 10 ms 16724 KB Output is correct
19 Correct 10 ms 16872 KB Output is correct
20 Correct 9 ms 16776 KB Output is correct
21 Correct 10 ms 16820 KB Output is correct
22 Correct 11 ms 16724 KB Output is correct
23 Correct 9 ms 16752 KB Output is correct
24 Correct 8 ms 16724 KB Output is correct
25 Correct 11 ms 16668 KB Output is correct
26 Correct 11 ms 16724 KB Output is correct
27 Correct 9 ms 16724 KB Output is correct
28 Correct 10 ms 16832 KB Output is correct
29 Correct 10 ms 16848 KB Output is correct
30 Correct 10 ms 16852 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16852 KB Output is correct
3 Correct 8 ms 16724 KB Output is correct
4 Correct 7 ms 16724 KB Output is correct
5 Correct 8 ms 16760 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 12 ms 16844 KB Output is correct
8 Correct 14 ms 16764 KB Output is correct
9 Correct 9 ms 16660 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 9 ms 16724 KB Output is correct
12 Correct 9 ms 16724 KB Output is correct
13 Correct 10 ms 16808 KB Output is correct
14 Correct 11 ms 16820 KB Output is correct
15 Correct 11 ms 16852 KB Output is correct
16 Correct 9 ms 16724 KB Output is correct
17 Correct 10 ms 16852 KB Output is correct
18 Correct 10 ms 16724 KB Output is correct
19 Correct 10 ms 16872 KB Output is correct
20 Correct 9 ms 16776 KB Output is correct
21 Correct 10 ms 16820 KB Output is correct
22 Correct 11 ms 16724 KB Output is correct
23 Correct 9 ms 16752 KB Output is correct
24 Correct 8 ms 16724 KB Output is correct
25 Correct 11 ms 16668 KB Output is correct
26 Correct 11 ms 16724 KB Output is correct
27 Correct 9 ms 16724 KB Output is correct
28 Correct 10 ms 16832 KB Output is correct
29 Correct 10 ms 16848 KB Output is correct
30 Correct 10 ms 16852 KB Output is correct
31 Correct 9 ms 16792 KB Output is correct
32 Correct 10 ms 16980 KB Output is correct
33 Correct 10 ms 16980 KB Output is correct
34 Correct 11 ms 16852 KB Output is correct
35 Correct 12 ms 16724 KB Output is correct
36 Correct 18 ms 17492 KB Output is correct
37 Correct 21 ms 17668 KB Output is correct
38 Correct 11 ms 16996 KB Output is correct
39 Correct 218 ms 21756 KB Output is correct
40 Correct 43 ms 18404 KB Output is correct
41 Correct 12 ms 17036 KB Output is correct
42 Correct 43 ms 18412 KB Output is correct
43 Correct 15 ms 17412 KB Output is correct
44 Correct 11 ms 16980 KB Output is correct
45 Correct 10 ms 16724 KB Output is correct
46 Correct 281 ms 21868 KB Output is correct
47 Correct 35 ms 18048 KB Output is correct
48 Correct 199 ms 21640 KB Output is correct
49 Correct 220 ms 21760 KB Output is correct
50 Correct 11 ms 16980 KB Output is correct
51 Correct 12 ms 17236 KB Output is correct
52 Correct 11 ms 17120 KB Output is correct
53 Correct 108 ms 19656 KB Output is correct
54 Correct 224 ms 21724 KB Output is correct
55 Correct 10 ms 16980 KB Output is correct
56 Correct 9 ms 16852 KB Output is correct
57 Correct 12 ms 16980 KB Output is correct
58 Correct 358 ms 21912 KB Output is correct
59 Correct 9 ms 16724 KB Output is correct
60 Correct 12 ms 17108 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 550 ms 51628 KB Output is correct
2 Correct 34 ms 31612 KB Output is correct
3 Execution timed out 6071 ms 181356 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 58.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 10 ms 16852 KB Output is correct
3 Correct 8 ms 16724 KB Output is correct
4 Correct 7 ms 16724 KB Output is correct
5 Correct 8 ms 16760 KB Output is correct
6 Correct 8 ms 16724 KB Output is correct
7 Correct 12 ms 16844 KB Output is correct
8 Correct 14 ms 16764 KB Output is correct
9 Correct 9 ms 16660 KB Output is correct
10 Correct 11 ms 16724 KB Output is correct
11 Correct 9 ms 16724 KB Output is correct
12 Correct 9 ms 16724 KB Output is correct
13 Correct 10 ms 16808 KB Output is correct
14 Correct 11 ms 16820 KB Output is correct
15 Correct 11 ms 16852 KB Output is correct
16 Correct 9 ms 16724 KB Output is correct
17 Correct 10 ms 16852 KB Output is correct
18 Correct 10 ms 16724 KB Output is correct
19 Correct 10 ms 16872 KB Output is correct
20 Correct 9 ms 16776 KB Output is correct
21 Correct 10 ms 16820 KB Output is correct
22 Correct 11 ms 16724 KB Output is correct
23 Correct 9 ms 16752 KB Output is correct
24 Correct 8 ms 16724 KB Output is correct
25 Correct 11 ms 16668 KB Output is correct
26 Correct 11 ms 16724 KB Output is correct
27 Correct 9 ms 16724 KB Output is correct
28 Correct 10 ms 16832 KB Output is correct
29 Correct 10 ms 16848 KB Output is correct
30 Correct 10 ms 16852 KB Output is correct
31 Correct 9 ms 16792 KB Output is correct
32 Correct 10 ms 16980 KB Output is correct
33 Correct 10 ms 16980 KB Output is correct
34 Correct 11 ms 16852 KB Output is correct
35 Correct 12 ms 16724 KB Output is correct
36 Correct 18 ms 17492 KB Output is correct
37 Correct 21 ms 17668 KB Output is correct
38 Correct 11 ms 16996 KB Output is correct
39 Correct 218 ms 21756 KB Output is correct
40 Correct 43 ms 18404 KB Output is correct
41 Correct 12 ms 17036 KB Output is correct
42 Correct 43 ms 18412 KB Output is correct
43 Correct 15 ms 17412 KB Output is correct
44 Correct 11 ms 16980 KB Output is correct
45 Correct 10 ms 16724 KB Output is correct
46 Correct 281 ms 21868 KB Output is correct
47 Correct 35 ms 18048 KB Output is correct
48 Correct 199 ms 21640 KB Output is correct
49 Correct 220 ms 21760 KB Output is correct
50 Correct 11 ms 16980 KB Output is correct
51 Correct 12 ms 17236 KB Output is correct
52 Correct 11 ms 17120 KB Output is correct
53 Correct 108 ms 19656 KB Output is correct
54 Correct 224 ms 21724 KB Output is correct
55 Correct 10 ms 16980 KB Output is correct
56 Correct 9 ms 16852 KB Output is correct
57 Correct 12 ms 16980 KB Output is correct
58 Correct 358 ms 21912 KB Output is correct
59 Correct 9 ms 16724 KB Output is correct
60 Correct 12 ms 17108 KB Output is correct
61 Correct 550 ms 51628 KB Output is correct
62 Correct 34 ms 31612 KB Output is correct
63 Execution timed out 6071 ms 181356 KB Time limit exceeded
64 Halted 0 ms 0 KB -