Submission #161905

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
161905	2019-11-05T09:23:26 Z	Alexa2001	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++17	100 / 100	1157 ms	103196 KB

sortbooks

#include <bits/stdc++.h>

using namespace std;

const int Nmax = 1e6 + 5;

int w[Nmax];
vector<int> start[Nmax];
int n, m;
int l[Nmax], r[Nmax], val[Nmax], ans[Nmax];

class SegTree
{
    int a[Nmax];
    int ub(int x) { return (x&(-x)); }

public:
    int query(int x)
    {
        int ans = 0;
        for(; x; x-=ub(x)) ans = max(ans, a[x]);
        return ans;
    }

    void update(int pos, int val)
    {
        for(; pos <= n; pos += ub(pos)) a[pos] = max(a[pos], val);
    }
} aib;

void prepare()
{
    int i, nr = 0;
    int st[Nmax];

    for(i=1; i<=n; ++i)
    {
        while(nr && w[st[nr]] <= w[i]) 
            --nr;

        if(nr) start[st[nr]].push_back(i);
        st[++nr] = i;
    }
}

int main()
{
 //   freopen("input", "r", stdin);
    cin.sync_with_stdio(false); cin.tie(0);

    cin >> n >> m;
   
    int i;
    for(i=1; i<=n; ++i) cin >> w[i];

    prepare();

    for(i=1; i<=m; ++i) cin >> l[i] >> r[i] >> val[i];

    vector<int> ord;
    for(i=1; i<=m; ++i) ord.push_back(i);

    sort( ord.begin(), ord.end(), [] (int x, int y) { return (l[x] > l[y]); } );
    
    int id = n;
    for(auto it : ord)
    {
        while(id >= l[it])
        {
            for(auto el : start[id])
                aib.update(el, w[id] + w[el]);
            --id;
        }

        ans[it] = (aib.query(r[it]) <= val[it]);
    }

    for(i=1; i<=m; ++i) cout << ans[i] << '\n';

    return 0;
}

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	23 ms	23928 KB	Output is correct
2	Correct	25 ms	23900 KB	Output is correct
3	Correct	35 ms	23928 KB	Output is correct
4	Correct	23 ms	23928 KB	Output is correct
5	Correct	24 ms	23928 KB	Output is correct
6	Correct	28 ms	23928 KB	Output is correct
7	Correct	25 ms	23928 KB	Output is correct
8	Correct	23 ms	23928 KB	Output is correct
9	Correct	24 ms	23928 KB	Output is correct
10	Correct	24 ms	23932 KB	Output is correct

Subtask #2
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	23 ms	23928 KB	Output is correct
2	Correct	25 ms	23900 KB	Output is correct
3	Correct	35 ms	23928 KB	Output is correct
4	Correct	23 ms	23928 KB	Output is correct
5	Correct	24 ms	23928 KB	Output is correct
6	Correct	28 ms	23928 KB	Output is correct
7	Correct	25 ms	23928 KB	Output is correct
8	Correct	23 ms	23928 KB	Output is correct
9	Correct	24 ms	23928 KB	Output is correct
10	Correct	24 ms	23932 KB	Output is correct
11	Correct	27 ms	24096 KB	Output is correct
12	Correct	28 ms	24184 KB	Output is correct
13	Correct	27 ms	24232 KB	Output is correct
14	Correct	27 ms	24312 KB	Output is correct
15	Correct	28 ms	24256 KB	Output is correct
16	Correct	27 ms	24172 KB	Output is correct
17	Correct	28 ms	24188 KB	Output is correct
18	Correct	27 ms	24196 KB	Output is correct

Subtask #3
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1104 ms	101368 KB	Output is correct
2	Correct	1157 ms	78920 KB	Output is correct
3	Correct	1097 ms	78856 KB	Output is correct
4	Correct	1104 ms	78948 KB	Output is correct
5	Correct	908 ms	58848 KB	Output is correct

Subtask #4
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	106 ms	30512 KB	Output is correct
2	Correct	103 ms	30572 KB	Output is correct
3	Correct	92 ms	28660 KB	Output is correct
4	Correct	90 ms	28532 KB	Output is correct
5	Correct	94 ms	28532 KB	Output is correct
6	Correct	85 ms	28452 KB	Output is correct
7	Correct	84 ms	28528 KB	Output is correct
8	Correct	92 ms	28784 KB	Output is correct
9	Correct	68 ms	27508 KB	Output is correct
10	Correct	87 ms	28820 KB	Output is correct

Subtask #5
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	23 ms	23928 KB	Output is correct
2	Correct	25 ms	23900 KB	Output is correct
3	Correct	35 ms	23928 KB	Output is correct
4	Correct	23 ms	23928 KB	Output is correct
5	Correct	24 ms	23928 KB	Output is correct
6	Correct	28 ms	23928 KB	Output is correct
7	Correct	25 ms	23928 KB	Output is correct
8	Correct	23 ms	23928 KB	Output is correct
9	Correct	24 ms	23928 KB	Output is correct
10	Correct	24 ms	23932 KB	Output is correct
11	Correct	27 ms	24096 KB	Output is correct
12	Correct	28 ms	24184 KB	Output is correct
13	Correct	27 ms	24232 KB	Output is correct
14	Correct	27 ms	24312 KB	Output is correct
15	Correct	28 ms	24256 KB	Output is correct
16	Correct	27 ms	24172 KB	Output is correct
17	Correct	28 ms	24188 KB	Output is correct
18	Correct	27 ms	24196 KB	Output is correct
19	Correct	223 ms	39764 KB	Output is correct
20	Correct	220 ms	39896 KB	Output is correct
21	Correct	208 ms	39528 KB	Output is correct
22	Correct	207 ms	39656 KB	Output is correct
23	Correct	207 ms	39616 KB	Output is correct
24	Correct	178 ms	35440 KB	Output is correct
25	Correct	179 ms	35408 KB	Output is correct
26	Correct	188 ms	35696 KB	Output is correct
27	Correct	189 ms	35700 KB	Output is correct
28	Correct	183 ms	35804 KB	Output is correct
29	Correct	187 ms	35696 KB	Output is correct
30	Correct	190 ms	35824 KB	Output is correct
31	Correct	190 ms	35824 KB	Output is correct
32	Correct	188 ms	35772 KB	Output is correct
33	Correct	208 ms	35696 KB	Output is correct
34	Correct	175 ms	35440 KB	Output is correct
35	Correct	172 ms	35440 KB	Output is correct
36	Correct	168 ms	35164 KB	Output is correct
37	Correct	164 ms	35324 KB	Output is correct
38	Correct	167 ms	35336 KB	Output is correct
39	Correct	172 ms	35604 KB	Output is correct
40	Correct	152 ms	33644 KB	Output is correct
41	Correct	164 ms	35252 KB	Output is correct

Subtask #6
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	23 ms	23928 KB	Output is correct
2	Correct	25 ms	23900 KB	Output is correct
3	Correct	35 ms	23928 KB	Output is correct
4	Correct	23 ms	23928 KB	Output is correct
5	Correct	24 ms	23928 KB	Output is correct
6	Correct	28 ms	23928 KB	Output is correct
7	Correct	25 ms	23928 KB	Output is correct
8	Correct	23 ms	23928 KB	Output is correct
9	Correct	24 ms	23928 KB	Output is correct
10	Correct	24 ms	23932 KB	Output is correct
11	Correct	27 ms	24096 KB	Output is correct
12	Correct	28 ms	24184 KB	Output is correct
13	Correct	27 ms	24232 KB	Output is correct
14	Correct	27 ms	24312 KB	Output is correct
15	Correct	28 ms	24256 KB	Output is correct
16	Correct	27 ms	24172 KB	Output is correct
17	Correct	28 ms	24188 KB	Output is correct
18	Correct	27 ms	24196 KB	Output is correct
19	Correct	1104 ms	101368 KB	Output is correct
20	Correct	1157 ms	78920 KB	Output is correct
21	Correct	1097 ms	78856 KB	Output is correct
22	Correct	1104 ms	78948 KB	Output is correct
23	Correct	908 ms	58848 KB	Output is correct
24	Correct	106 ms	30512 KB	Output is correct
25	Correct	103 ms	30572 KB	Output is correct
26	Correct	92 ms	28660 KB	Output is correct
27	Correct	90 ms	28532 KB	Output is correct
28	Correct	94 ms	28532 KB	Output is correct
29	Correct	85 ms	28452 KB	Output is correct
30	Correct	84 ms	28528 KB	Output is correct
31	Correct	92 ms	28784 KB	Output is correct
32	Correct	68 ms	27508 KB	Output is correct
33	Correct	87 ms	28820 KB	Output is correct
34	Correct	223 ms	39764 KB	Output is correct
35	Correct	220 ms	39896 KB	Output is correct
36	Correct	208 ms	39528 KB	Output is correct
37	Correct	207 ms	39656 KB	Output is correct
38	Correct	207 ms	39616 KB	Output is correct
39	Correct	178 ms	35440 KB	Output is correct
40	Correct	179 ms	35408 KB	Output is correct
41	Correct	188 ms	35696 KB	Output is correct
42	Correct	189 ms	35700 KB	Output is correct
43	Correct	183 ms	35804 KB	Output is correct
44	Correct	187 ms	35696 KB	Output is correct
45	Correct	190 ms	35824 KB	Output is correct
46	Correct	190 ms	35824 KB	Output is correct
47	Correct	188 ms	35772 KB	Output is correct
48	Correct	208 ms	35696 KB	Output is correct
49	Correct	175 ms	35440 KB	Output is correct
50	Correct	172 ms	35440 KB	Output is correct
51	Correct	168 ms	35164 KB	Output is correct
52	Correct	164 ms	35324 KB	Output is correct
53	Correct	167 ms	35336 KB	Output is correct
54	Correct	172 ms	35604 KB	Output is correct
55	Correct	152 ms	33644 KB	Output is correct
56	Correct	164 ms	35252 KB	Output is correct
57	Correct	1138 ms	101972 KB	Output is correct
58	Correct	1147 ms	103196 KB	Output is correct
59	Correct	1107 ms	103060 KB	Output is correct
60	Correct	1100 ms	103144 KB	Output is correct
61	Correct	1095 ms	103156 KB	Output is correct
62	Correct	1088 ms	103144 KB	Output is correct
63	Correct	838 ms	81276 KB	Output is correct
64	Correct	865 ms	81348 KB	Output is correct
65	Correct	913 ms	83072 KB	Output is correct
66	Correct	952 ms	83084 KB	Output is correct
67	Correct	940 ms	83164 KB	Output is correct
68	Correct	953 ms	83104 KB	Output is correct
69	Correct	995 ms	83212 KB	Output is correct
70	Correct	883 ms	83308 KB	Output is correct
71	Correct	916 ms	83236 KB	Output is correct
72	Correct	917 ms	83016 KB	Output is correct
73	Correct	827 ms	79888 KB	Output is correct
74	Correct	816 ms	80760 KB	Output is correct
75	Correct	867 ms	79708 KB	Output is correct
76	Correct	845 ms	79708 KB	Output is correct
77	Correct	846 ms	79580 KB	Output is correct
78	Correct	884 ms	83856 KB	Output is correct
79	Correct	794 ms	71396 KB	Output is correct
80	Correct	837 ms	81804 KB	Output is correct

Submission #161905

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 9.0 / 9.0

Subtask #3 13.0 / 13.0

Subtask #4 17.0 / 17.0

Subtask #5 30.0 / 30.0

Subtask #6 23.0 / 23.0

Subtask #1
8.0 / 8.0

Subtask #2
9.0 / 9.0

Subtask #3
13.0 / 13.0

Subtask #4
17.0 / 17.0

Subtask #5
30.0 / 30.0

Subtask #6
23.0 / 23.0