oj.uz

Submission #737562

# Submission time Handle Problem Language Result Execution time Memory
737562 2023-05-07T10:53:30 Z Ronin13 Relay Marathon (NOI20_relaymarathon) C++14
17 / 100
 6000 ms 188068 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 < 7; 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() > 7)
        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 < 7; 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 < 7; 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);
    vector <pair<ll, pii> > cand;
    for(auto to : vec){
        if(cand.size() > 700) break;
        if(cnt[to.s.f] < 7 && cnt[to.s.s] < 7){
            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:97:22: 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]
   97 |     for(int i = 0; i < cand.size(); i++){
      |                    ~~^~~~~~~~~~~~~
RelayMarathon.cpp:98:25: 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]
   98 |         for(int j =0; j < cand.size(); j++){
      |                       ~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16724 KB Output is correct
2 Correct 11 ms 16852 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 8 ms 16724 KB Output is correct
5 Correct 9 ms 16716 KB Output is correct
6 Correct 9 ms 16812 KB Output is correct
7 Correct 11 ms 16800 KB Output is correct
8 Correct 10 ms 16852 KB Output is correct
9 Correct 8 ms 16724 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 10 ms 16724 KB Output is correct
12 Correct 10 ms 16724 KB Output is correct
13 Correct 12 ms 16852 KB Output is correct
14 Correct 10 ms 16760 KB Output is correct
15 Correct 14 ms 16860 KB Output is correct
16 Correct 9 ms 16696 KB Output is correct
17 Correct 13 ms 16832 KB Output is correct
18 Correct 8 ms 16724 KB Output is correct
19 Correct 13 ms 16916 KB Output is correct
20 Correct 10 ms 16716 KB Output is correct
21 Correct 11 ms 16852 KB Output is correct
22 Correct 8 ms 16724 KB Output is correct
23 Correct 11 ms 16840 KB Output is correct
24 Correct 9 ms 16724 KB Output is correct
25 Correct 9 ms 16724 KB Output is correct
26 Correct 8 ms 16724 KB Output is correct
27 Correct 8 ms 16724 KB Output is correct
28 Correct 13 ms 16928 KB Output is correct
29 Correct 11 ms 16852 KB Output is correct
30 Correct 11 ms 16852 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16724 KB Output is correct
2 Correct 11 ms 16852 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 8 ms 16724 KB Output is correct
5 Correct 9 ms 16716 KB Output is correct
6 Correct 9 ms 16812 KB Output is correct
7 Correct 11 ms 16800 KB Output is correct
8 Correct 10 ms 16852 KB Output is correct
9 Correct 8 ms 16724 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 10 ms 16724 KB Output is correct
12 Correct 10 ms 16724 KB Output is correct
13 Correct 12 ms 16852 KB Output is correct
14 Correct 10 ms 16760 KB Output is correct
15 Correct 14 ms 16860 KB Output is correct
16 Correct 9 ms 16696 KB Output is correct
17 Correct 13 ms 16832 KB Output is correct
18 Correct 8 ms 16724 KB Output is correct
19 Correct 13 ms 16916 KB Output is correct
20 Correct 10 ms 16716 KB Output is correct
21 Correct 11 ms 16852 KB Output is correct
22 Correct 8 ms 16724 KB Output is correct
23 Correct 11 ms 16840 KB Output is correct
24 Correct 9 ms 16724 KB Output is correct
25 Correct 9 ms 16724 KB Output is correct
26 Correct 8 ms 16724 KB Output is correct
27 Correct 8 ms 16724 KB Output is correct
28 Correct 13 ms 16928 KB Output is correct
29 Correct 11 ms 16852 KB Output is correct
30 Correct 11 ms 16852 KB Output is correct
31 Correct 9 ms 16852 KB Output is correct
32 Correct 11 ms 16980 KB Output is correct
33 Correct 10 ms 16980 KB Output is correct
34 Correct 8 ms 16852 KB Output is correct
35 Correct 9 ms 16724 KB Output is correct
36 Correct 68 ms 17748 KB Output is correct
37 Correct 66 ms 17908 KB Output is correct
38 Correct 12 ms 17080 KB Output is correct
39 Correct 292 ms 21848 KB Output is correct
40 Correct 110 ms 18768 KB Output is correct
41 Correct 12 ms 17112 KB Output is correct
42 Correct 108 ms 18760 KB Output is correct
43 Correct 65 ms 17576 KB Output is correct
44 Correct 16 ms 17100 KB Output is correct
45 Correct 9 ms 16744 KB Output is correct
46 Correct 503 ms 22356 KB Output is correct
47 Correct 94 ms 18348 KB Output is correct
48 Correct 309 ms 21964 KB Output is correct
49 Correct 416 ms 22352 KB Output is correct
50 Correct 11 ms 16980 KB Output is correct
51 Correct 60 ms 17260 KB Output is correct
52 Correct 11 ms 17108 KB Output is correct
53 Correct 165 ms 19916 KB Output is correct
54 Correct 364 ms 22084 KB Output is correct
55 Correct 12 ms 16972 KB Output is correct
56 Correct 9 ms 16852 KB Output is correct
57 Correct 12 ms 16980 KB Output is correct
58 Correct 544 ms 22184 KB Output is correct
59 Correct 10 ms 16724 KB Output is correct
60 Correct 61 ms 17236 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 768 ms 58212 KB Output is correct
2 Correct 35 ms 31680 KB Output is correct
3 Execution timed out 6091 ms 188068 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 58.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16724 KB Output is correct
2 Correct 11 ms 16852 KB Output is correct
3 Correct 9 ms 16724 KB Output is correct
4 Correct 8 ms 16724 KB Output is correct
5 Correct 9 ms 16716 KB Output is correct
6 Correct 9 ms 16812 KB Output is correct
7 Correct 11 ms 16800 KB Output is correct
8 Correct 10 ms 16852 KB Output is correct
9 Correct 8 ms 16724 KB Output is correct
10 Correct 10 ms 16724 KB Output is correct
11 Correct 10 ms 16724 KB Output is correct
12 Correct 10 ms 16724 KB Output is correct
13 Correct 12 ms 16852 KB Output is correct
14 Correct 10 ms 16760 KB Output is correct
15 Correct 14 ms 16860 KB Output is correct
16 Correct 9 ms 16696 KB Output is correct
17 Correct 13 ms 16832 KB Output is correct
18 Correct 8 ms 16724 KB Output is correct
19 Correct 13 ms 16916 KB Output is correct
20 Correct 10 ms 16716 KB Output is correct
21 Correct 11 ms 16852 KB Output is correct
22 Correct 8 ms 16724 KB Output is correct
23 Correct 11 ms 16840 KB Output is correct
24 Correct 9 ms 16724 KB Output is correct
25 Correct 9 ms 16724 KB Output is correct
26 Correct 8 ms 16724 KB Output is correct
27 Correct 8 ms 16724 KB Output is correct
28 Correct 13 ms 16928 KB Output is correct
29 Correct 11 ms 16852 KB Output is correct
30 Correct 11 ms 16852 KB Output is correct
31 Correct 9 ms 16852 KB Output is correct
32 Correct 11 ms 16980 KB Output is correct
33 Correct 10 ms 16980 KB Output is correct
34 Correct 8 ms 16852 KB Output is correct
35 Correct 9 ms 16724 KB Output is correct
36 Correct 68 ms 17748 KB Output is correct
37 Correct 66 ms 17908 KB Output is correct
38 Correct 12 ms 17080 KB Output is correct
39 Correct 292 ms 21848 KB Output is correct
40 Correct 110 ms 18768 KB Output is correct
41 Correct 12 ms 17112 KB Output is correct
42 Correct 108 ms 18760 KB Output is correct
43 Correct 65 ms 17576 KB Output is correct
44 Correct 16 ms 17100 KB Output is correct
45 Correct 9 ms 16744 KB Output is correct
46 Correct 503 ms 22356 KB Output is correct
47 Correct 94 ms 18348 KB Output is correct
48 Correct 309 ms 21964 KB Output is correct
49 Correct 416 ms 22352 KB Output is correct
50 Correct 11 ms 16980 KB Output is correct
51 Correct 60 ms 17260 KB Output is correct
52 Correct 11 ms 17108 KB Output is correct
53 Correct 165 ms 19916 KB Output is correct
54 Correct 364 ms 22084 KB Output is correct
55 Correct 12 ms 16972 KB Output is correct
56 Correct 9 ms 16852 KB Output is correct
57 Correct 12 ms 16980 KB Output is correct
58 Correct 544 ms 22184 KB Output is correct
59 Correct 10 ms 16724 KB Output is correct
60 Correct 61 ms 17236 KB Output is correct
61 Correct 768 ms 58212 KB Output is correct
62 Correct 35 ms 31680 KB Output is correct
63 Execution timed out 6091 ms 188068 KB Time limit exceeded
64 Halted 0 ms 0 KB -