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답안 #564676

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
564676 2022-05-19T12:55:56 Z maomao90 Wild Boar (JOI18_wild_boar) C++17
62 / 100
 18000 ms 916020 KB 
// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
using namespace std;

template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
#define REP(i, s, e) for (int i = s; i < e; i++)
#define RREP(i, s, e) for (int i = s; i >= e; i--)
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
typedef tuple<ll, ll, ll> tll;
#define ALL(_a) _a.begin(), _a.end()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 2005;
const int MAXL = 100005;
const int BAG = 5;

int n, m, t, l, e;
vi adj[MAXN * 3];
int w[MAXN * 3];
int x[MAXL];
ll rd[MAXN][MAXN][BAG];
int rfi[MAXN][MAXN][BAG], rse[MAXN][MAXN][BAG];
ll dp[MAXL][BAG];

int par[MAXN][2];
ll dist[MAXN * 3][MAXN * 3][2];
int fi[MAXN][MAXN], se[MAXN][MAXN];
priority_queue<tll, vector<tll>, greater<tll>> pq;
void dijkstra(int s) {
    REP (i, 0, e) {
        dist[s][i][0] = dist[s][i][1] = LINF;
    }
    REP (i, 0, n + 1) {
        par[i][0] = par[i][1] = -1;
        if (s <= n) {
            fi[s][i] = se[s][i] = -1;
        }
    }
    dist[s][s][0] = w[s];
    pq.push(tll{w[s], s, 0});
    while (!pq.empty()) {
        auto [d, u, tp] = pq.top(); pq.pop();
        if (d != dist[s][u][tp]) continue;
        for (int v : adj[u]) {
            int cpar = par[u][tp];
            if (u <= n && v > n && (v ^ 1) == cpar) {
                continue;
            }
            if (u > n) {
                cpar = adj[u ^ 1][0];
            }
            ll nd = d + w[v];
            if (mnto(dist[s][v][0], nd)) {
                pq.push(tll{nd, v, 0});
                if (v <= n) {
                    if (s <= n) {
                        fi[s][v] = fi[s][cpar] == -1 ? u : fi[s][cpar];
                        se[s][v] = u;
                        if (s == 3) {
                            cerr << v << ": " << fi[s][v] << ' ' << cpar << '\n';
                        }
                    }
                    par[v][0] = u;
                }
            } else if (mnto(dist[s][v][1], nd) && v <= n && par[v][0] != u) {
                pq.push(tll{nd, v, 1});
                par[v][1] = u;
            }
        }
    }
}

int main() {
#ifndef DEBUG
    ios::sync_with_stdio(0), cin.tie(0);
#endif
    cin >> n >> m >> t >> l;
    e = n + 1;
    if (e & 1) {
        e++;
    }
    REP (i, 0, m) {
        int a, b, c; cin >> a >> b >> c;
        w[e] = c;
        adj[a].pb(e);
        adj[e].pb(b);
        e++;
        w[e] = c;
        adj[b].pb(e);
        adj[e].pb(a);
        e++;
    }
    assert(e < MAXN * 3);
    REP (i, 1, e) {
        dijkstra(i);
    }
    REP (i, 1, n + 1) {
        REP (j, 1, n + 1) {
            if (i == j) continue;
            REP (z, 0, BAG) {
                rd[i][j][z] = LINF;
            }
            rd[i][j][0] = dist[i][j][0];
            rfi[i][j][0] = fi[i][j]; rse[i][j][0] = se[i][j];
            for (int u : adj[i]) {
                for (int v : adj[j]) {
                    v ^= 1;
                    REP (z, 1, 3) {
                        if ((z == 1 && u == fi[i][j]) ||
                                (z == 2 && v == se[i][j])) {
                            continue;
                        }
                        if (mnto(rd[i][j][z], dist[u][v][0])) {
                            rfi[i][j][z] = u;
                            rse[i][j][z] = v;
                        }
                    }
                }
            }
            if (rd[i][j][1] != LINF) {
                for (int u : adj[i]) {
                    for (int v : adj[j]) {
                        v ^= 1;
                        if (u == fi[i][j] || v == rse[i][j][1]) continue;
                        if (mnto(rd[i][j][3], dist[u][v][0])) {
                            rfi[i][j][3] = u;
                            rse[i][j][3] = v;
                        }
                    }
                }
            }
            if (rd[i][j][2] != LINF) {
                for (int u : adj[i]) {
                    for (int v : adj[j]) {
                        v ^= 1;
                        if (u == rfi[i][j][2] || v == se[i][j]) continue;
                        if (mnto(rd[i][j][4], dist[u][v][0])) {
                            rfi[i][j][4] = u;
                            rse[i][j][4] = v;
                        }
                    }
                }
            }
            REP (z, 0, BAG) {
                cerr << i << ' ' << j << ' ' << z << ": " << rd[i][j][z] << ' ' << rfi[i][j][z] << ' ' << rse[i][j][z] << '\n';
            }
        }
    }
    x[0] = -1;
    REP (i, 1, l + 1) {
        cin >> x[i];
    }
    while (t--) {
        int p, q; cin >> p >> q;
        x[p] = q;
        REP (j, 0, BAG) {
            dp[1][j] = 0;
        }
        REP (i, 2, l + 1) {
            int p = x[i - 2], u = x[i - 1], v = x[i];
            REP (j, 0, BAG) {
                dp[i][j] = LINF;
                REP (k, 0, BAG) {
                    if (p != -1 && (rse[p][u][k] ^ 1) == rfi[u][v][j]) continue;
                    mnto(dp[i][j], dp[i - 1][k] + rd[u][v][j]);
                }
                cerr << i << ' ' << j << ": " << dp[i][j] << '\n';
            }
        }
        ll ans = LINF;
        REP (j, 0, BAG) {
            mnto(ans, dp[l][j]);
        }
        if (ans >= LINF) {
            ans = -1;
        }
        cout << ans << '\n';
    }
    return 0;
}

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 724 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 724 KB Output is correct
15 Correct 1 ms 852 KB Output is correct
16 Correct 1 ms 852 KB Output is correct
17 Correct 1 ms 852 KB Output is correct
18 Correct 1 ms 852 KB Output is correct
19 Correct 1 ms 852 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 1 ms 724 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 724 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct

Subtask #2
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 724 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 724 KB Output is correct
15 Correct 1 ms 852 KB Output is correct
16 Correct 1 ms 852 KB Output is correct
17 Correct 1 ms 852 KB Output is correct
18 Correct 1 ms 852 KB Output is correct
19 Correct 1 ms 852 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 1 ms 724 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 724 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 2 ms 1492 KB Output is correct
27 Correct 18 ms 10424 KB Output is correct
28 Correct 18 ms 10324 KB Output is correct
29 Correct 88 ms 18508 KB Output is correct
30 Correct 83 ms 18380 KB Output is correct
31 Correct 80 ms 18364 KB Output is correct
32 Correct 76 ms 18376 KB Output is correct
33 Correct 101 ms 21744 KB Output is correct
34 Correct 100 ms 21816 KB Output is correct
35 Correct 81 ms 21772 KB Output is correct
36 Correct 88 ms 21772 KB Output is correct
37 Correct 110 ms 21836 KB Output is correct
38 Correct 108 ms 25880 KB Output is correct
39 Correct 95 ms 25656 KB Output is correct
40 Correct 107 ms 25740 KB Output is correct
41 Correct 108 ms 25676 KB Output is correct
42 Correct 93 ms 28384 KB Output is correct
43 Correct 110 ms 30140 KB Output is correct
44 Correct 110 ms 30164 KB Output is correct
45 Correct 53 ms 35068 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 724 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 724 KB Output is correct
15 Correct 1 ms 852 KB Output is correct
16 Correct 1 ms 852 KB Output is correct
17 Correct 1 ms 852 KB Output is correct
18 Correct 1 ms 852 KB Output is correct
19 Correct 1 ms 852 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 1 ms 724 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 724 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 2 ms 1492 KB Output is correct
27 Correct 18 ms 10424 KB Output is correct
28 Correct 18 ms 10324 KB Output is correct
29 Correct 88 ms 18508 KB Output is correct
30 Correct 83 ms 18380 KB Output is correct
31 Correct 80 ms 18364 KB Output is correct
32 Correct 76 ms 18376 KB Output is correct
33 Correct 101 ms 21744 KB Output is correct
34 Correct 100 ms 21816 KB Output is correct
35 Correct 81 ms 21772 KB Output is correct
36 Correct 88 ms 21772 KB Output is correct
37 Correct 110 ms 21836 KB Output is correct
38 Correct 108 ms 25880 KB Output is correct
39 Correct 95 ms 25656 KB Output is correct
40 Correct 107 ms 25740 KB Output is correct
41 Correct 108 ms 25676 KB Output is correct
42 Correct 93 ms 28384 KB Output is correct
43 Correct 110 ms 30140 KB Output is correct
44 Correct 110 ms 30164 KB Output is correct
45 Correct 53 ms 35068 KB Output is correct
46 Correct 251 ms 35596 KB Output is correct
47 Correct 3145 ms 372060 KB Output is correct
48 Correct 3610 ms 456616 KB Output is correct
49 Correct 4002 ms 522916 KB Output is correct
50 Correct 4325 ms 522920 KB Output is correct
51 Correct 4595 ms 523036 KB Output is correct
52 Correct 4966 ms 523240 KB Output is correct
53 Correct 4676 ms 523196 KB Output is correct
54 Correct 4294 ms 523260 KB Output is correct
55 Correct 4151 ms 523184 KB Output is correct
56 Correct 4342 ms 558736 KB Output is correct
57 Correct 4472 ms 596080 KB Output is correct
58 Correct 4594 ms 635160 KB Output is correct
59 Correct 4735 ms 676184 KB Output is correct
60 Correct 4801 ms 718924 KB Output is correct
61 Correct 4739 ms 763736 KB Output is correct
62 Correct 4709 ms 810536 KB Output is correct
63 Correct 4482 ms 855224 KB Output is correct
64 Correct 1525 ms 915864 KB Output is correct
65 Correct 1520 ms 915908 KB Output is correct

Subtask #4
0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 724 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 1 ms 724 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 1 ms 724 KB Output is correct
14 Correct 1 ms 724 KB Output is correct
15 Correct 1 ms 852 KB Output is correct
16 Correct 1 ms 852 KB Output is correct
17 Correct 1 ms 852 KB Output is correct
18 Correct 1 ms 852 KB Output is correct
19 Correct 1 ms 852 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 1 ms 724 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 724 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 2 ms 1492 KB Output is correct
27 Correct 18 ms 10424 KB Output is correct
28 Correct 18 ms 10324 KB Output is correct
29 Correct 88 ms 18508 KB Output is correct
30 Correct 83 ms 18380 KB Output is correct
31 Correct 80 ms 18364 KB Output is correct
32 Correct 76 ms 18376 KB Output is correct
33 Correct 101 ms 21744 KB Output is correct
34 Correct 100 ms 21816 KB Output is correct
35 Correct 81 ms 21772 KB Output is correct
36 Correct 88 ms 21772 KB Output is correct
37 Correct 110 ms 21836 KB Output is correct
38 Correct 108 ms 25880 KB Output is correct
39 Correct 95 ms 25656 KB Output is correct
40 Correct 107 ms 25740 KB Output is correct
41 Correct 108 ms 25676 KB Output is correct
42 Correct 93 ms 28384 KB Output is correct
43 Correct 110 ms 30140 KB Output is correct
44 Correct 110 ms 30164 KB Output is correct
45 Correct 53 ms 35068 KB Output is correct
46 Correct 251 ms 35596 KB Output is correct
47 Correct 3145 ms 372060 KB Output is correct
48 Correct 3610 ms 456616 KB Output is correct
49 Correct 4002 ms 522916 KB Output is correct
50 Correct 4325 ms 522920 KB Output is correct
51 Correct 4595 ms 523036 KB Output is correct
52 Correct 4966 ms 523240 KB Output is correct
53 Correct 4676 ms 523196 KB Output is correct
54 Correct 4294 ms 523260 KB Output is correct
55 Correct 4151 ms 523184 KB Output is correct
56 Correct 4342 ms 558736 KB Output is correct
57 Correct 4472 ms 596080 KB Output is correct
58 Correct 4594 ms 635160 KB Output is correct
59 Correct 4735 ms 676184 KB Output is correct
60 Correct 4801 ms 718924 KB Output is correct
61 Correct 4739 ms 763736 KB Output is correct
62 Correct 4709 ms 810536 KB Output is correct
63 Correct 4482 ms 855224 KB Output is correct
64 Correct 1525 ms 915864 KB Output is correct
65 Correct 1520 ms 915908 KB Output is correct
66 Correct 981 ms 6100 KB Output is correct
67 Correct 915 ms 261020 KB Output is correct
68 Correct 1909 ms 911144 KB Output is correct
69 Correct 2448 ms 912116 KB Output is correct
70 Execution timed out 18079 ms 916020 KB Time limit exceeded
71 Halted 0 ms 0 KB -