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Submission #701652

# Submission time Handle Problem Language Result Execution time Memory
701652 2023-02-21T16:48:03 Z jennierubyjane Relay Marathon (NOI20_relaymarathon) C++14
17 / 100
 228 ms 9160 KB 
#include<bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
#define FORD(i, b, a) for (int i = (b), _a = (a); i >= _a; i--)
#define REP(i, b) for (int i = 0, _b = (b); i < _b; i++)
#define ii pair<int, int>
#define pb push_back
#define fi first
#define se second
#define mp make_pair
#define ALL(v) (v).begin(), (v).end()
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1LL)
#define ll long long
#define ld long double
#define sz(x) ((int)(x).size())
#define next ____next
#define prev ____prev
#define left ____left
#define right ___right
#define lcm ___lcm
#define index ____index
using namespace std;

template<class M> M myabs(M x) {
        return x < 0 ? -x : x;
}
template<class M1, class M2> bool minimize(M1 &x, const M2 &y) {
        if (x > y) {x = y; return true;} return false;
}
template<class M1, class M2> bool maximize(M1 &x, const M2 &y) {
        if (x < y) {x = y; return true;} return false;
}

const int INF = (int)1e9 + 7;
const ll INFLL = (ll)1e18 + 7LL;

const int dx[] = {1, 0, -1, 0, 1, -1, 1, -1};
const int dy[] = {0, 1, 0, -1, 1, -1, -1, 1};

mt19937 rd(time(0));
/**
ii = pair<int, int>
FOR(i, a, b): a, b == int
**/

#define MAX 5050

int n, m, num_special;
vector<ii> adj[MAX];
int a[MAX];
ll d[MAX][MAX];

void dijkstra(int s, ll d[]) {
        FOR(i, 1, n) d[i] = INFLL;
        d[s] = 0;
        priority_queue<pair<ll, int>, vector<pair<ll, int>>, greater<pair<ll, int>>> q;
        q.push(mp(d[s], s));
        while (!q.empty()) {
            int u = q.top().se; ll w = q.top().fi; q.pop();
            if (w != d[u]) continue;
            for (auto p : adj[u]) {
                int v = p.se, c = p.fi;
                if (minimize(d[v], d[u] + c)) q.push(mp(d[v], v));
            }
        }

}

bool check(const ii& A, const ii& B) {
        return A.fi != B.fi && A.fi != B.se && A.se != B.fi && A.se != B.se;
}

void solve() {
        cin >> n >> m >> num_special;
        FOR(i, 1, m) {
            int u, v, c; cin >> u >> v >> c;
            adj[u].push_back(mp(c, v));
            adj[v].push_back(mp(c, u));
        }
        FOR(i, 1, num_special) cin >> a[i];
        sort(a + 1, a + 1 + num_special);
        FOR(i, 1, num_special) dijkstra(a[i], d[a[i]]);
        vector<pair<ll, ii>> vec;
        FOR(i, 1, num_special) FOR(j, i + 1, num_special) if (d[a[i]][a[j]] < INFLL)
            vec.push_back(mp(d[a[i]][a[j]], mp(a[i], a[j])));
        sort(ALL(vec)); vec.erase(unique(ALL(vec)), vec.end());
        ll ans = INFLL;
        //for (auto p : vec) cout << p.fi << " " << p.se.fi << " " << p.se.se << "\n";
        REP(i, sz(vec)) FOR(j, i + 1, sz(vec) - 1) if (check(vec[i].se, vec[j].se)) {
            minimize(ans, vec[i].fi + vec[j].fi);
            //cout << vec[i].fi << " " << vec[j].fi << "\n";
            break;
        }
        cout << ans;
}

int main() {
        ios_base::sync_with_stdio(false);
        cin.tie(0);
       
        int t = 1; //cin >> t;
        while (t--) solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 452 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 608 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 1 ms 584 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 2 ms 720 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 2 ms 724 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 716 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 596 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 452 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 608 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 1 ms 584 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 2 ms 720 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 2 ms 724 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 716 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 596 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 596 KB Output is correct
33 Correct 1 ms 464 KB Output is correct
34 Correct 1 ms 456 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 49 ms 4064 KB Output is correct
37 Correct 95 ms 6484 KB Output is correct
38 Correct 2 ms 596 KB Output is correct
39 Correct 40 ms 4040 KB Output is correct
40 Correct 79 ms 4420 KB Output is correct
41 Correct 2 ms 596 KB Output is correct
42 Correct 104 ms 5092 KB Output is correct
43 Correct 41 ms 3908 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 1 ms 596 KB Output is correct
46 Correct 228 ms 9160 KB Output is correct
47 Correct 79 ms 4280 KB Output is correct
48 Correct 52 ms 4208 KB Output is correct
49 Correct 144 ms 6852 KB Output is correct
50 Correct 1 ms 596 KB Output is correct
51 Correct 25 ms 4208 KB Output is correct
52 Correct 2 ms 596 KB Output is correct
53 Correct 34 ms 2668 KB Output is correct
54 Correct 45 ms 4284 KB Output is correct
55 Correct 1 ms 596 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 2 ms 584 KB Output is correct
58 Correct 119 ms 5768 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 32 ms 4180 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 704 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 58.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 468 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 452 KB Output is correct
4 Correct 1 ms 456 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 0 ms 468 KB Output is correct
7 Correct 1 ms 608 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 0 ms 468 KB Output is correct
11 Correct 1 ms 584 KB Output is correct
12 Correct 1 ms 596 KB Output is correct
13 Correct 2 ms 720 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 2 ms 724 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 716 KB Output is correct
20 Correct 1 ms 596 KB Output is correct
21 Correct 1 ms 596 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 588 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 2 ms 724 KB Output is correct
29 Correct 1 ms 596 KB Output is correct
30 Correct 1 ms 596 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 596 KB Output is correct
33 Correct 1 ms 464 KB Output is correct
34 Correct 1 ms 456 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 49 ms 4064 KB Output is correct
37 Correct 95 ms 6484 KB Output is correct
38 Correct 2 ms 596 KB Output is correct
39 Correct 40 ms 4040 KB Output is correct
40 Correct 79 ms 4420 KB Output is correct
41 Correct 2 ms 596 KB Output is correct
42 Correct 104 ms 5092 KB Output is correct
43 Correct 41 ms 3908 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 1 ms 596 KB Output is correct
46 Correct 228 ms 9160 KB Output is correct
47 Correct 79 ms 4280 KB Output is correct
48 Correct 52 ms 4208 KB Output is correct
49 Correct 144 ms 6852 KB Output is correct
50 Correct 1 ms 596 KB Output is correct
51 Correct 25 ms 4208 KB Output is correct
52 Correct 2 ms 596 KB Output is correct
53 Correct 34 ms 2668 KB Output is correct
54 Correct 45 ms 4284 KB Output is correct
55 Correct 1 ms 596 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 2 ms 584 KB Output is correct
58 Correct 119 ms 5768 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 32 ms 4180 KB Output is correct
61 Runtime error 4 ms 704 KB Execution killed with signal 11
62 Halted 0 ms 0 KB -