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Submission #967473

# Submission time Handle Problem Language Result Execution time Memory
967473 2024-04-22T07:31:45 Z Tuanlinh123 Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 869 ms 255128 KB 
#include<bits/stdc++.h>
#define ll int
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
#define sz(a) ((ll)(a).size())
using namespace std;

const ll maxn=100005, s=300;
ll dp[maxn], seen[maxn];
vector <pll> best[maxn];
vector <ll> A[maxn], At[maxn];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    ll n, m, q; cin >> n >> m >> q;
    for (ll i=1; i<=m; i++)
    {
        ll u, v; cin >> u >> v;
        A[u].pb(v), At[v].pb(u);
    }
    for (ll u=1; u<=n; u++)
    {
        if (sz(At[u]))
        {
            vector <pll> val; 
            best[u]=best[At[u][0]];
            for (ll i=1; i<sz(At[u]); i++)
            {
                val.clear(), val.reserve(s*2);
                ll v=At[u][i];
                for (ll p1=0, p2=0; p1<sz(best[u]) || p2<sz(best[v]);)
                {
                    if (p1==sz(best[u]) || (p2<sz(best[v]) && best[u][p1]<best[v][p2]))
                        val.pb(best[v][p2]), p2++;
                    else val.pb(best[u][p1]), p1++;
                }
                best[u].clear();
                for (auto [x, v]:val)
                    if (!seen[v])
                    {
                        seen[v]=1, best[u].pb({x, v});
                        if (sz(best[u])==s) break;
                    }
                for (auto [x, v]:best[u]) seen[v]=0;
            }
        }
        for (auto &[x, v]:best[u]) x++;
        if (sz(best[u])<s) best[u].pb({0, u});
    }
    for (ll i=1; i<=q; i++)
    {
        ll X, x, ans=-1; cin >> X >> x;
        vector <ll> a(x);
        for (ll &i:a) cin >> i, seen[i]=1;
        if (x>=s)
        {
            for (ll i=1; i<=n; i++) dp[i]=seen[i]?-1e9:0;
            for (ll u=1; u<=X; u++)
                for (ll v:At[u]) 
                    dp[u]=max(dp[u], dp[v]+1);
            if (dp[X]>=0) ans=dp[X];
        }
        else for (auto [x, v]:best[X])
            if (!seen[v]) {ans=x; break;}
        for (ll j:a) seen[j]=0;
        cout << ans << "\n";
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7260 KB Output is correct
2 Correct 2 ms 7456 KB Output is correct
3 Correct 3 ms 7260 KB Output is correct
4 Correct 2 ms 7260 KB Output is correct
5 Correct 4 ms 8028 KB Output is correct
6 Correct 4 ms 8028 KB Output is correct
7 Correct 4 ms 8024 KB Output is correct
8 Correct 8 ms 10076 KB Output is correct
9 Correct 8 ms 10072 KB Output is correct
10 Correct 8 ms 10124 KB Output is correct
11 Correct 8 ms 10064 KB Output is correct
12 Correct 5 ms 9052 KB Output is correct
13 Correct 8 ms 9820 KB Output is correct
14 Correct 7 ms 9124 KB Output is correct
15 Correct 5 ms 8280 KB Output is correct
16 Correct 7 ms 9048 KB Output is correct
17 Correct 7 ms 9308 KB Output is correct
18 Correct 5 ms 8792 KB Output is correct
19 Correct 7 ms 9304 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7260 KB Output is correct
2 Correct 2 ms 7456 KB Output is correct
3 Correct 3 ms 7260 KB Output is correct
4 Correct 2 ms 7260 KB Output is correct
5 Correct 4 ms 8028 KB Output is correct
6 Correct 4 ms 8028 KB Output is correct
7 Correct 4 ms 8024 KB Output is correct
8 Correct 8 ms 10076 KB Output is correct
9 Correct 8 ms 10072 KB Output is correct
10 Correct 8 ms 10124 KB Output is correct
11 Correct 8 ms 10064 KB Output is correct
12 Correct 5 ms 9052 KB Output is correct
13 Correct 8 ms 9820 KB Output is correct
14 Correct 7 ms 9124 KB Output is correct
15 Correct 5 ms 8280 KB Output is correct
16 Correct 7 ms 9048 KB Output is correct
17 Correct 7 ms 9308 KB Output is correct
18 Correct 5 ms 8792 KB Output is correct
19 Correct 7 ms 9304 KB Output is correct
20 Correct 716 ms 12928 KB Output is correct
21 Correct 654 ms 12300 KB Output is correct
22 Correct 695 ms 13136 KB Output is correct
23 Correct 768 ms 12884 KB Output is correct
24 Correct 625 ms 226772 KB Output is correct
25 Correct 659 ms 236792 KB Output is correct
26 Correct 641 ms 236404 KB Output is correct
27 Correct 568 ms 251728 KB Output is correct
28 Correct 558 ms 251476 KB Output is correct
29 Correct 580 ms 251884 KB Output is correct
30 Correct 597 ms 250808 KB Output is correct
31 Correct 561 ms 246352 KB Output is correct
32 Correct 570 ms 250708 KB Output is correct
33 Correct 546 ms 193240 KB Output is correct
34 Correct 518 ms 163788 KB Output is correct
35 Correct 539 ms 192324 KB Output is correct
36 Correct 594 ms 241508 KB Output is correct
37 Correct 586 ms 230172 KB Output is correct
38 Correct 582 ms 242852 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7260 KB Output is correct
2 Correct 2 ms 7456 KB Output is correct
3 Correct 3 ms 7260 KB Output is correct
4 Correct 2 ms 7260 KB Output is correct
5 Correct 4 ms 8028 KB Output is correct
6 Correct 4 ms 8028 KB Output is correct
7 Correct 4 ms 8024 KB Output is correct
8 Correct 8 ms 10076 KB Output is correct
9 Correct 8 ms 10072 KB Output is correct
10 Correct 8 ms 10124 KB Output is correct
11 Correct 8 ms 10064 KB Output is correct
12 Correct 5 ms 9052 KB Output is correct
13 Correct 8 ms 9820 KB Output is correct
14 Correct 7 ms 9124 KB Output is correct
15 Correct 5 ms 8280 KB Output is correct
16 Correct 7 ms 9048 KB Output is correct
17 Correct 7 ms 9308 KB Output is correct
18 Correct 5 ms 8792 KB Output is correct
19 Correct 7 ms 9304 KB Output is correct
20 Correct 716 ms 12928 KB Output is correct
21 Correct 654 ms 12300 KB Output is correct
22 Correct 695 ms 13136 KB Output is correct
23 Correct 768 ms 12884 KB Output is correct
24 Correct 625 ms 226772 KB Output is correct
25 Correct 659 ms 236792 KB Output is correct
26 Correct 641 ms 236404 KB Output is correct
27 Correct 568 ms 251728 KB Output is correct
28 Correct 558 ms 251476 KB Output is correct
29 Correct 580 ms 251884 KB Output is correct
30 Correct 597 ms 250808 KB Output is correct
31 Correct 561 ms 246352 KB Output is correct
32 Correct 570 ms 250708 KB Output is correct
33 Correct 546 ms 193240 KB Output is correct
34 Correct 518 ms 163788 KB Output is correct
35 Correct 539 ms 192324 KB Output is correct
36 Correct 594 ms 241508 KB Output is correct
37 Correct 586 ms 230172 KB Output is correct
38 Correct 582 ms 242852 KB Output is correct
39 Correct 655 ms 229584 KB Output is correct
40 Correct 646 ms 231300 KB Output is correct
41 Correct 651 ms 233352 KB Output is correct
42 Correct 698 ms 233996 KB Output is correct
43 Correct 647 ms 232436 KB Output is correct
44 Correct 711 ms 13136 KB Output is correct
45 Correct 713 ms 12728 KB Output is correct
46 Correct 705 ms 12992 KB Output is correct
47 Correct 705 ms 13248 KB Output is correct
48 Correct 692 ms 12988 KB Output is correct
49 Correct 788 ms 251124 KB Output is correct
50 Correct 740 ms 250508 KB Output is correct
51 Correct 675 ms 12616 KB Output is correct
52 Correct 650 ms 12360 KB Output is correct
53 Correct 629 ms 242492 KB Output is correct
54 Correct 620 ms 230112 KB Output is correct
55 Correct 649 ms 241236 KB Output is correct
56 Correct 584 ms 230208 KB Output is correct
57 Correct 704 ms 12816 KB Output is correct
58 Correct 738 ms 13392 KB Output is correct
59 Correct 685 ms 12588 KB Output is correct
60 Correct 702 ms 13020 KB Output is correct
61 Correct 796 ms 251076 KB Output is correct
62 Correct 695 ms 241704 KB Output is correct
63 Correct 641 ms 229408 KB Output is correct
64 Correct 869 ms 251204 KB Output is correct
65 Correct 792 ms 241140 KB Output is correct
66 Correct 730 ms 233540 KB Output is correct
67 Correct 730 ms 253496 KB Output is correct
68 Correct 587 ms 244304 KB Output is correct
69 Correct 573 ms 231156 KB Output is correct
70 Correct 743 ms 253868 KB Output is correct
71 Correct 604 ms 244268 KB Output is correct
72 Correct 606 ms 233140 KB Output is correct
73 Correct 772 ms 254032 KB Output is correct
74 Correct 619 ms 245076 KB Output is correct
75 Correct 596 ms 232652 KB Output is correct
76 Correct 779 ms 255128 KB Output is correct
77 Correct 734 ms 254032 KB Output is correct
78 Correct 739 ms 254224 KB Output is correct
79 Correct 673 ms 15184 KB Output is correct
80 Correct 653 ms 14420 KB Output is correct
81 Correct 654 ms 13960 KB Output is correct
82 Correct 782 ms 254288 KB Output is correct
83 Correct 763 ms 250132 KB Output is correct
84 Correct 736 ms 253168 KB Output is correct
85 Correct 723 ms 248400 KB Output is correct
86 Correct 730 ms 253472 KB Output is correct
87 Correct 740 ms 250012 KB Output is correct
88 Correct 741 ms 15188 KB Output is correct
89 Correct 725 ms 15700 KB Output is correct
90 Correct 703 ms 14016 KB Output is correct
91 Correct 707 ms 15048 KB Output is correct
92 Correct 715 ms 13920 KB Output is correct
93 Correct 693 ms 14488 KB Output is correct
94 Correct 611 ms 196632 KB Output is correct
95 Correct 559 ms 166508 KB Output is correct
96 Correct 562 ms 194188 KB Output is correct
97 Correct 534 ms 168084 KB Output is correct
98 Correct 599 ms 195360 KB Output is correct
99 Correct 545 ms 167948 KB Output is correct
100 Correct 814 ms 15604 KB Output is correct
101 Correct 781 ms 15776 KB Output is correct
102 Correct 787 ms 14420 KB Output is correct
103 Correct 785 ms 14832 KB Output is correct
104 Correct 777 ms 14332 KB Output is correct
105 Correct 774 ms 14436 KB Output is correct
106 Correct 678 ms 245328 KB Output is correct
107 Correct 617 ms 234068 KB Output is correct
108 Correct 645 ms 245280 KB Output is correct
109 Correct 588 ms 232668 KB Output is correct
110 Correct 596 ms 245008 KB Output is correct
111 Correct 592 ms 233300 KB Output is correct
112 Correct 710 ms 15640 KB Output is correct
113 Correct 720 ms 15712 KB Output is correct
114 Correct 695 ms 14272 KB Output is correct
115 Correct 711 ms 14928 KB Output is correct
116 Correct 685 ms 14264 KB Output is correct
117 Correct 702 ms 14420 KB Output is correct
118 Correct 736 ms 253360 KB Output is correct
119 Correct 592 ms 244536 KB Output is correct
120 Correct 589 ms 232484 KB Output is correct
121 Correct 736 ms 253264 KB Output is correct
122 Correct 587 ms 243872 KB Output is correct
123 Correct 604 ms 231572 KB Output is correct
124 Correct 729 ms 253268 KB Output is correct
125 Correct 621 ms 245052 KB Output is correct
126 Correct 573 ms 230892 KB Output is correct