oj.uz

Submission #403804

# Submission time Handle Problem Language Result Execution time Memory
403804 2021-05-13T13:24:26 Z ScarletS Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 2000 ms 420592 KB 
#include <bits/stdc++.h>
#define sz(x) (int)(x).size()
using namespace std;
 
const int N = 1e5+4, B = 316, INF = -1e9;
vector<int> to[N], from[N];
vector<array<int,2>> pre[N];
int ans[N];
bitset<N> d;
 
vector<array<int,2>> merge(vector<array<int,2>> v, vector<array<int,2>> w)
{
    int x=0,y=0;
    vector<array<int,2>> u;
    while (x<sz(v)&&y<sz(w)&&sz(u)<B)
    {
        if (v[x][0]+1>w[y][0])
        {
            if (!d[v[x][1]])
            {
                d[v[x][1]]=1;
                u.push_back({v[x][0]+1,v[x][1]});
            }
            ++x;
        }
        else
        {
            if (!d[w[y][1]])
            {
                d[w[y][1]]=1;
                u.push_back(w[y]);
            }
            ++y;
        }
    }
    while (x<sz(v)&&sz(u)<B)
    {
        if (!d[v[x][1]])
        {
            d[v[x][1]]=1;
            u.push_back({v[x][0]+1,v[x][1]});
        }
        ++x;
    }
    while (y<sz(w)&&sz(u)<B)
    {
        if (!d[w[y][1]])
        {
            d[w[y][1]]=1;
            u.push_back(w[y]);
        }
        ++y;
    }
    for (auto i : u)
        d[i[1]]=0;
    return u;
}
 
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n,m,q,x,y,z,a;
    cin>>n>>m>>q;
    while (m--)
    {
        cin>>x>>y;
        from[x].push_back(y);
        to[y].push_back(x);
    }
    for (int i=1;i<=n;++i)
        pre[i].push_back({0,i});
    for (int i=1;i<=n;++i)
        for (int j : from[i])
            pre[j]=merge(pre[i],pre[j]);
    // for (int i=1;i<=n;++i)
    // {
    //     cout<<i<<":\n";
    //     for (auto j : pre[i])
    //         cout<<j[0]<<" "<<j[1]<<"\n";
    // }
    // return 0;
    while (q--)
    {
        cin>>x>>y;
        a=-1;
        if (y<B)
        {
            vector<int> t(y);
            for (int i=0;i<y;++i)
            {
                cin>>t[i];
                d[t[i]]=1;
            }
            for (auto i : pre[x])
                if (!d[i[1]])
                    a=max(a,i[0]);
            for (int i : t)
                d[i]=0;
        }
        else
        {
            for (int i=0;i<y;++i)
            {
                cin>>z;
                if (z<=x)
                    d[z]=1;
            }
            for (int i=1;i<=x;++i)
                ans[i]=INF;
            ans[x]=0;
            for (int i=x;i;--i)
            {
                if (!d[i])
                    a=max(a,ans[i]);
                else
                    d[i]=0;
                for (int j : to[i])
                    ans[j]=max(ans[j],ans[i]+1);
            }
        }
        cout<<a<<"\n";
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 5 ms 7244 KB Output is correct
3 Correct 5 ms 7256 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 8 ms 7884 KB Output is correct
6 Correct 8 ms 7972 KB Output is correct
7 Correct 7 ms 7884 KB Output is correct
8 Correct 16 ms 11084 KB Output is correct
9 Correct 18 ms 11096 KB Output is correct
10 Correct 17 ms 11084 KB Output is correct
11 Correct 16 ms 10616 KB Output is correct
12 Correct 10 ms 8780 KB Output is correct
13 Correct 14 ms 10448 KB Output is correct
14 Correct 13 ms 9512 KB Output is correct
15 Correct 10 ms 8476 KB Output is correct
16 Correct 13 ms 9416 KB Output is correct
17 Correct 13 ms 9804 KB Output is correct
18 Correct 10 ms 8660 KB Output is correct
19 Correct 13 ms 9804 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 5 ms 7244 KB Output is correct
3 Correct 5 ms 7256 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 8 ms 7884 KB Output is correct
6 Correct 8 ms 7972 KB Output is correct
7 Correct 7 ms 7884 KB Output is correct
8 Correct 16 ms 11084 KB Output is correct
9 Correct 18 ms 11096 KB Output is correct
10 Correct 17 ms 11084 KB Output is correct
11 Correct 16 ms 10616 KB Output is correct
12 Correct 10 ms 8780 KB Output is correct
13 Correct 14 ms 10448 KB Output is correct
14 Correct 13 ms 9512 KB Output is correct
15 Correct 10 ms 8476 KB Output is correct
16 Correct 13 ms 9416 KB Output is correct
17 Correct 13 ms 9804 KB Output is correct
18 Correct 10 ms 8660 KB Output is correct
19 Correct 13 ms 9804 KB Output is correct
20 Correct 859 ms 13636 KB Output is correct
21 Correct 879 ms 13764 KB Output is correct
22 Correct 847 ms 13796 KB Output is correct
23 Correct 1052 ms 13776 KB Output is correct
24 Correct 1078 ms 264840 KB Output is correct
25 Correct 1141 ms 275916 KB Output is correct
26 Correct 1144 ms 275996 KB Output is correct
27 Correct 1612 ms 419012 KB Output is correct
28 Correct 1597 ms 418972 KB Output is correct
29 Correct 1584 ms 419108 KB Output is correct
30 Correct 1538 ms 417860 KB Output is correct
31 Correct 1426 ms 408220 KB Output is correct
32 Correct 1536 ms 417892 KB Output is correct
33 Correct 1049 ms 262468 KB Output is correct
34 Correct 906 ms 218564 KB Output is correct
35 Correct 1037 ms 260820 KB Output is correct
36 Correct 1338 ms 342480 KB Output is correct
37 Correct 1186 ms 312960 KB Output is correct
38 Correct 1327 ms 343540 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7244 KB Output is correct
2 Correct 5 ms 7244 KB Output is correct
3 Correct 5 ms 7256 KB Output is correct
4 Correct 5 ms 7244 KB Output is correct
5 Correct 8 ms 7884 KB Output is correct
6 Correct 8 ms 7972 KB Output is correct
7 Correct 7 ms 7884 KB Output is correct
8 Correct 16 ms 11084 KB Output is correct
9 Correct 18 ms 11096 KB Output is correct
10 Correct 17 ms 11084 KB Output is correct
11 Correct 16 ms 10616 KB Output is correct
12 Correct 10 ms 8780 KB Output is correct
13 Correct 14 ms 10448 KB Output is correct
14 Correct 13 ms 9512 KB Output is correct
15 Correct 10 ms 8476 KB Output is correct
16 Correct 13 ms 9416 KB Output is correct
17 Correct 13 ms 9804 KB Output is correct
18 Correct 10 ms 8660 KB Output is correct
19 Correct 13 ms 9804 KB Output is correct
20 Correct 859 ms 13636 KB Output is correct
21 Correct 879 ms 13764 KB Output is correct
22 Correct 847 ms 13796 KB Output is correct
23 Correct 1052 ms 13776 KB Output is correct
24 Correct 1078 ms 264840 KB Output is correct
25 Correct 1141 ms 275916 KB Output is correct
26 Correct 1144 ms 275996 KB Output is correct
27 Correct 1612 ms 419012 KB Output is correct
28 Correct 1597 ms 418972 KB Output is correct
29 Correct 1584 ms 419108 KB Output is correct
30 Correct 1538 ms 417860 KB Output is correct
31 Correct 1426 ms 408220 KB Output is correct
32 Correct 1536 ms 417892 KB Output is correct
33 Correct 1049 ms 262468 KB Output is correct
34 Correct 906 ms 218564 KB Output is correct
35 Correct 1037 ms 260820 KB Output is correct
36 Correct 1338 ms 342480 KB Output is correct
37 Correct 1186 ms 312960 KB Output is correct
38 Correct 1327 ms 343540 KB Output is correct
39 Correct 1197 ms 271888 KB Output is correct
40 Correct 1115 ms 272880 KB Output is correct
41 Correct 1135 ms 276116 KB Output is correct
42 Correct 1280 ms 274252 KB Output is correct
43 Correct 1127 ms 273480 KB Output is correct
44 Correct 922 ms 16324 KB Output is correct
45 Correct 877 ms 15552 KB Output is correct
46 Correct 877 ms 15312 KB Output is correct
47 Correct 903 ms 15232 KB Output is correct
48 Correct 848 ms 15132 KB Output is correct
49 Correct 1713 ms 420140 KB Output is correct
50 Correct 1612 ms 418716 KB Output is correct
51 Correct 961 ms 16264 KB Output is correct
52 Correct 888 ms 15348 KB Output is correct
53 Correct 1443 ms 342036 KB Output is correct
54 Correct 1291 ms 314272 KB Output is correct
55 Correct 1337 ms 341312 KB Output is correct
56 Correct 1199 ms 314196 KB Output is correct
57 Correct 938 ms 16196 KB Output is correct
58 Correct 957 ms 16192 KB Output is correct
59 Correct 868 ms 15300 KB Output is correct
60 Correct 861 ms 15448 KB Output is correct
61 Correct 1737 ms 419340 KB Output is correct
62 Correct 1518 ms 343436 KB Output is correct
63 Correct 1387 ms 312696 KB Output is correct
64 Correct 2000 ms 419368 KB Output is correct
65 Correct 1760 ms 341836 KB Output is correct
66 Correct 1603 ms 314820 KB Output is correct
67 Correct 1597 ms 418860 KB Output is correct
68 Correct 1370 ms 342716 KB Output is correct
69 Correct 1201 ms 310588 KB Output is correct
70 Correct 1595 ms 419272 KB Output is correct
71 Correct 1413 ms 343196 KB Output is correct
72 Correct 1249 ms 314024 KB Output is correct
73 Correct 1686 ms 419268 KB Output is correct
74 Correct 1449 ms 343104 KB Output is correct
75 Correct 1294 ms 314024 KB Output is correct
76 Correct 1700 ms 420592 KB Output is correct
77 Correct 1589 ms 419168 KB Output is correct
78 Correct 1615 ms 419524 KB Output is correct
79 Correct 956 ms 16456 KB Output is correct
80 Correct 879 ms 15352 KB Output is correct
81 Correct 873 ms 15144 KB Output is correct
82 Correct 1669 ms 419328 KB Output is correct
83 Correct 1562 ms 409528 KB Output is correct
84 Correct 1610 ms 418184 KB Output is correct
85 Correct 1475 ms 407852 KB Output is correct
86 Correct 1612 ms 418456 KB Output is correct
87 Correct 1496 ms 409288 KB Output is correct
88 Correct 949 ms 16320 KB Output is correct
89 Correct 947 ms 16324 KB Output is correct
90 Correct 873 ms 15428 KB Output is correct
91 Correct 858 ms 15428 KB Output is correct
92 Correct 873 ms 15172 KB Output is correct
93 Correct 864 ms 15164 KB Output is correct
94 Correct 1151 ms 264032 KB Output is correct
95 Correct 997 ms 218636 KB Output is correct
96 Correct 1076 ms 261484 KB Output is correct
97 Correct 983 ms 221508 KB Output is correct
98 Correct 1084 ms 262700 KB Output is correct
99 Correct 936 ms 221176 KB Output is correct
100 Correct 1152 ms 16336 KB Output is correct
101 Correct 1127 ms 16400 KB Output is correct
102 Correct 1053 ms 15556 KB Output is correct
103 Correct 1059 ms 15428 KB Output is correct
104 Correct 1048 ms 15172 KB Output is correct
105 Correct 1038 ms 15124 KB Output is correct
106 Correct 1459 ms 342820 KB Output is correct
107 Correct 1332 ms 314972 KB Output is correct
108 Correct 1352 ms 343716 KB Output is correct
109 Correct 1199 ms 313152 KB Output is correct
110 Correct 1388 ms 344364 KB Output is correct
111 Correct 1221 ms 314900 KB Output is correct
112 Correct 930 ms 16444 KB Output is correct
113 Correct 926 ms 16396 KB Output is correct
114 Correct 879 ms 15548 KB Output is correct
115 Correct 866 ms 15288 KB Output is correct
116 Correct 856 ms 15104 KB Output is correct
117 Correct 854 ms 15172 KB Output is correct
118 Correct 1588 ms 418756 KB Output is correct
119 Correct 1410 ms 343220 KB Output is correct
120 Correct 1256 ms 312888 KB Output is correct
121 Correct 1647 ms 418900 KB Output is correct
122 Correct 1392 ms 341928 KB Output is correct
123 Correct 1251 ms 313100 KB Output is correct
124 Correct 1608 ms 418900 KB Output is correct
125 Correct 1414 ms 343540 KB Output is correct
126 Correct 1254 ms 312312 KB Output is correct