oj.uz

Submission #1003291

# Submission time Handle Problem Language Result Execution time Memory
1003291 2024-06-20T08:37:53 Z 12345678 Event Hopping 2 (JOI21_event2) C++17
100 / 100
 100 ms 13940 KB 
#include <bits/stdc++.h>

using namespace std;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

const int nx=1e5+5, kx=17, inf=2e9;

int n, k, a[nx], b[nx], pa[nx][kx], mx, vl;

struct range
{
    int l, r;
    range(int l, int r): l(l), r(r){}
    bool operator< (const range &o) const
    {
        if (r==o.r) return l<o.l;
        return r<o.r;
    }
};
vector<range> v;
set<range> cur;

int query(int u, int limit)
{
    int res=0;
    if (limit==inf) limit--;
    for (int i=kx-1; i>=0; i--) if (v[pa[u][i]].r<=limit) res+=(1<<i), u=pa[u][i];
    return res;
}

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>k;
    v.push_back(range(0, 0));
    for (int i=1; i<=n; i++) cin>>a[i]>>b[i], v.push_back(range(a[i], b[i])), pa[i][0]=n+1;
    v.push_back(range({inf, inf}));
    sort(v.begin(), v.end());
    int lst=0;
    for (int i=1; i<=n+1; i++)
    {
        mx=max(mx, v[i].l);
        while (lst<=n+1&&v[lst].r<=mx) pa[lst++][0]=i;
    }
    for (int i=1; i<kx; i++) for (int j=0; j<=n+1; j++) pa[j][i]=pa[pa[j][i-1]][i-1];
    vl=query(0, inf);
    if (vl<k) return cout<<-1, 0;
    cur.insert(range(0, 0));
    for (int i=1; i<=n; i++)
    {
        if (!k) continue;
        auto itr=cur.upper_bound(range(a[i], b[i]));
        if (itr!=cur.end()&&itr->l<b[i]) continue;
        if (prev(itr)->r>a[i]) continue;
        int tmp=vl, pidx=lower_bound(v.begin(), v.end(), *prev(itr))-v.begin(), cidx=lower_bound(v.begin(), v.end(), range(a[i], b[i]))-v.begin();
        tmp-=query(pidx, (itr==cur.end())?inf:itr->l);
        tmp+=query(pidx, a[i]);
        tmp+=query(cidx, (itr==cur.end())?inf:itr->l);
        if (tmp>=k-1) k--, cur.insert(range(a[i], b[i])), vl=tmp, cout<<i<<'\n';
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 73 ms 13560 KB Output is correct
5 Correct 66 ms 13260 KB Output is correct
6 Correct 59 ms 13008 KB Output is correct
7 Correct 57 ms 12552 KB Output is correct
8 Correct 70 ms 13536 KB Output is correct
9 Correct 70 ms 13260 KB Output is correct
10 Correct 62 ms 13000 KB Output is correct
11 Correct 75 ms 12572 KB Output is correct
12 Correct 53 ms 11464 KB Output is correct
13 Correct 48 ms 11472 KB Output is correct
14 Correct 50 ms 11216 KB Output is correct
15 Correct 52 ms 10860 KB Output is correct
16 Correct 36 ms 9160 KB Output is correct
17 Correct 29 ms 9168 KB Output is correct
18 Correct 32 ms 9104 KB Output is correct
19 Correct 24 ms 8660 KB Output is correct
20 Correct 28 ms 8832 KB Output is correct
21 Correct 26 ms 8660 KB Output is correct
22 Correct 25 ms 8664 KB Output is correct
23 Correct 27 ms 8884 KB Output is correct
24 Correct 27 ms 8652 KB Output is correct
25 Correct 25 ms 8660 KB Output is correct
26 Correct 25 ms 8664 KB Output is correct
27 Correct 23 ms 8636 KB Output is correct
28 Correct 20 ms 8664 KB Output is correct
29 Correct 22 ms 8780 KB Output is correct
30 Correct 22 ms 8696 KB Output is correct
31 Correct 21 ms 8664 KB Output is correct
32 Correct 23 ms 8620 KB Output is correct
33 Correct 25 ms 8660 KB Output is correct
34 Correct 38 ms 10328 KB Output is correct
35 Correct 30 ms 9676 KB Output is correct
36 Correct 24 ms 9172 KB Output is correct
37 Correct 55 ms 11216 KB Output is correct
38 Correct 46 ms 11008 KB Output is correct
39 Correct 47 ms 10956 KB Output is correct
40 Correct 42 ms 10884 KB Output is correct
41 Correct 40 ms 10696 KB Output is correct
42 Correct 26 ms 8664 KB Output is correct
43 Correct 50 ms 10956 KB Output is correct
44 Correct 56 ms 11116 KB Output is correct
45 Correct 50 ms 10824 KB Output is correct
46 Correct 45 ms 10704 KB Output is correct

Subtask #2
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 1 ms 600 KB Output is correct
31 Correct 1 ms 600 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 2 ms 860 KB Output is correct
36 Correct 2 ms 860 KB Output is correct
37 Correct 2 ms 604 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 2 ms 604 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 604 KB Output is correct
48 Correct 1 ms 604 KB Output is correct
49 Correct 2 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 604 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 604 KB Output is correct
55 Correct 2 ms 860 KB Output is correct
56 Correct 2 ms 692 KB Output is correct
57 Correct 2 ms 860 KB Output is correct
58 Correct 2 ms 860 KB Output is correct
59 Correct 1 ms 860 KB Output is correct
60 Correct 2 ms 860 KB Output is correct
61 Correct 1 ms 860 KB Output is correct
62 Correct 2 ms 860 KB Output is correct
63 Correct 2 ms 604 KB Output is correct
64 Correct 1 ms 604 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 73 ms 13560 KB Output is correct
5 Correct 66 ms 13260 KB Output is correct
6 Correct 59 ms 13008 KB Output is correct
7 Correct 57 ms 12552 KB Output is correct
8 Correct 70 ms 13536 KB Output is correct
9 Correct 70 ms 13260 KB Output is correct
10 Correct 62 ms 13000 KB Output is correct
11 Correct 75 ms 12572 KB Output is correct
12 Correct 53 ms 11464 KB Output is correct
13 Correct 48 ms 11472 KB Output is correct
14 Correct 50 ms 11216 KB Output is correct
15 Correct 52 ms 10860 KB Output is correct
16 Correct 36 ms 9160 KB Output is correct
17 Correct 29 ms 9168 KB Output is correct
18 Correct 32 ms 9104 KB Output is correct
19 Correct 24 ms 8660 KB Output is correct
20 Correct 28 ms 8832 KB Output is correct
21 Correct 26 ms 8660 KB Output is correct
22 Correct 25 ms 8664 KB Output is correct
23 Correct 27 ms 8884 KB Output is correct
24 Correct 27 ms 8652 KB Output is correct
25 Correct 25 ms 8660 KB Output is correct
26 Correct 25 ms 8664 KB Output is correct
27 Correct 23 ms 8636 KB Output is correct
28 Correct 20 ms 8664 KB Output is correct
29 Correct 22 ms 8780 KB Output is correct
30 Correct 22 ms 8696 KB Output is correct
31 Correct 21 ms 8664 KB Output is correct
32 Correct 23 ms 8620 KB Output is correct
33 Correct 25 ms 8660 KB Output is correct
34 Correct 38 ms 10328 KB Output is correct
35 Correct 30 ms 9676 KB Output is correct
36 Correct 24 ms 9172 KB Output is correct
37 Correct 55 ms 11216 KB Output is correct
38 Correct 46 ms 11008 KB Output is correct
39 Correct 47 ms 10956 KB Output is correct
40 Correct 42 ms 10884 KB Output is correct
41 Correct 40 ms 10696 KB Output is correct
42 Correct 26 ms 8664 KB Output is correct
43 Correct 50 ms 10956 KB Output is correct
44 Correct 56 ms 11116 KB Output is correct
45 Correct 50 ms 10824 KB Output is correct
46 Correct 45 ms 10704 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 0 ms 348 KB Output is correct
68 Correct 0 ms 348 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 0 ms 344 KB Output is correct
74 Correct 1 ms 600 KB Output is correct
75 Correct 1 ms 604 KB Output is correct
76 Correct 1 ms 600 KB Output is correct
77 Correct 1 ms 600 KB Output is correct
78 Correct 1 ms 604 KB Output is correct
79 Correct 1 ms 604 KB Output is correct
80 Correct 1 ms 604 KB Output is correct
81 Correct 2 ms 860 KB Output is correct
82 Correct 2 ms 860 KB Output is correct
83 Correct 2 ms 604 KB Output is correct
84 Correct 1 ms 604 KB Output is correct
85 Correct 2 ms 860 KB Output is correct
86 Correct 2 ms 604 KB Output is correct
87 Correct 1 ms 604 KB Output is correct
88 Correct 1 ms 604 KB Output is correct
89 Correct 1 ms 604 KB Output is correct
90 Correct 1 ms 604 KB Output is correct
91 Correct 1 ms 604 KB Output is correct
92 Correct 1 ms 604 KB Output is correct
93 Correct 1 ms 604 KB Output is correct
94 Correct 1 ms 604 KB Output is correct
95 Correct 2 ms 604 KB Output is correct
96 Correct 1 ms 604 KB Output is correct
97 Correct 1 ms 604 KB Output is correct
98 Correct 1 ms 604 KB Output is correct
99 Correct 1 ms 604 KB Output is correct
100 Correct 1 ms 604 KB Output is correct
101 Correct 2 ms 860 KB Output is correct
102 Correct 2 ms 692 KB Output is correct
103 Correct 2 ms 860 KB Output is correct
104 Correct 2 ms 860 KB Output is correct
105 Correct 1 ms 860 KB Output is correct
106 Correct 2 ms 860 KB Output is correct
107 Correct 1 ms 860 KB Output is correct
108 Correct 2 ms 860 KB Output is correct
109 Correct 2 ms 604 KB Output is correct
110 Correct 1 ms 604 KB Output is correct
111 Correct 31 ms 8808 KB Output is correct
112 Correct 33 ms 8640 KB Output is correct
113 Correct 30 ms 8664 KB Output is correct
114 Correct 27 ms 8660 KB Output is correct
115 Correct 33 ms 8660 KB Output is correct
116 Correct 23 ms 8664 KB Output is correct
117 Correct 26 ms 8784 KB Output is correct
118 Correct 100 ms 13516 KB Output is correct
119 Correct 83 ms 13008 KB Output is correct
120 Correct 59 ms 10956 KB Output is correct
121 Correct 26 ms 8660 KB Output is correct
122 Correct 86 ms 11472 KB Output is correct
123 Correct 77 ms 11208 KB Output is correct
124 Correct 70 ms 10960 KB Output is correct
125 Correct 25 ms 8660 KB Output is correct
126 Correct 52 ms 9328 KB Output is correct
127 Correct 43 ms 9164 KB Output is correct
128 Correct 42 ms 9172 KB Output is correct
129 Correct 27 ms 8664 KB Output is correct
130 Correct 33 ms 8812 KB Output is correct
131 Correct 33 ms 8664 KB Output is correct
132 Correct 31 ms 8660 KB Output is correct
133 Correct 26 ms 8660 KB Output is correct
134 Correct 33 ms 8664 KB Output is correct
135 Correct 31 ms 8664 KB Output is correct
136 Correct 26 ms 8664 KB Output is correct
137 Correct 26 ms 8804 KB Output is correct
138 Correct 30 ms 8664 KB Output is correct
139 Correct 29 ms 8572 KB Output is correct
140 Correct 27 ms 8664 KB Output is correct
141 Correct 26 ms 8736 KB Output is correct
142 Correct 71 ms 13712 KB Output is correct
143 Correct 72 ms 13940 KB Output is correct
144 Correct 72 ms 13776 KB Output is correct
145 Correct 75 ms 13776 KB Output is correct
146 Correct 74 ms 13676 KB Output is correct
147 Correct 67 ms 13520 KB Output is correct
148 Correct 71 ms 13420 KB Output is correct
149 Correct 69 ms 13260 KB Output is correct
150 Correct 70 ms 13148 KB Output is correct
151 Correct 64 ms 12672 KB Output is correct
152 Correct 22 ms 8664 KB Output is correct
153 Correct 75 ms 13680 KB Output is correct
154 Correct 94 ms 13772 KB Output is correct
155 Correct 73 ms 13620 KB Output is correct
156 Correct 72 ms 13512 KB Output is correct
157 Correct 69 ms 13268 KB Output is correct
158 Correct 73 ms 13264 KB Output is correct
159 Correct 65 ms 12744 KB Output is correct
160 Correct 22 ms 8664 KB Output is correct
161 Correct 75 ms 11216 KB Output is correct
162 Correct 65 ms 10988 KB Output is correct
163 Correct 62 ms 10952 KB Output is correct
164 Correct 65 ms 10952 KB Output is correct
165 Correct 62 ms 10700 KB Output is correct
166 Correct 23 ms 8660 KB Output is correct
167 Correct 47 ms 11192 KB Output is correct
168 Correct 48 ms 10868 KB Output is correct
169 Correct 63 ms 10876 KB Output is correct
170 Correct 48 ms 10696 KB Output is correct
171 Correct 47 ms 11216 KB Output is correct
172 Correct 56 ms 11212 KB Output is correct
173 Correct 79 ms 11072 KB Output is correct
174 Correct 86 ms 11212 KB Output is correct
175 Correct 78 ms 11212 KB Output is correct
176 Correct 60 ms 10704 KB Output is correct