답안 #585884

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
585884	2022-06-29T13:34:01 Z	teki	Mountains (NOI20_mountains)	C++11	100 / 100	125 ms	15272 KB

Mountains

#include <bits/stdc++.h>

typedef long long ll;

#define pb push_back
#define MS(x,y) memset((x),(y),sizeof((x)))
const ll MN = 1000000007;

using namespace std;

ll n;
ll tree[300001];
ll niza[300001];

ll query(ll pos) {
    ll ret = 0;
    while (pos > 0) {
        ret += tree[pos];
        pos -= pos&(-pos);
    }
    return ret;
}

void update(ll pos, ll val) {
    while (pos <= n) {
        tree[pos] += val;
        pos += pos&(-pos);
    }
}

ll presmetaj (ll pos) {
    ll levo = query(pos-1);
    ll site = query(n);

    return levo*(site-levo);
}

int main()
{
    #if LOCAL_DEBUG
        fstream cin("in.txt");
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    MS(tree,0);

    cin>>n;

    for (ll i = 1; i<=n; i++) cin>>niza[i];

    vector<pair<ll,ll>> sorti(n+1);
    for (ll i = 1; i<=n; i++) sorti[i] = {niza[i],i};
    sort(sorti.begin(),sorti.end());

    vector<ll> moment;
    ll sea = -1, res = 0;

    for (ll i = 1; i<=n; i++) {
        ll a = sorti[i].first;

        if (a != sea) {
            for (auto it:moment) res += presmetaj(it);
            for (auto it:moment) update(it,1);

            vector<ll> nov;
            swap(moment,nov);
        }

        sea = a;
        moment.pb(sorti[i].second);
    }

    for (auto it:moment) res += presmetaj(it);

    cout<<res<<endl;

    return 0;
}

Subtask #1
2.0 / 2.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2644 KB	Output is correct
2	Correct	74 ms	9712 KB	Output is correct
3	Correct	71 ms	9652 KB	Output is correct
4	Correct	66 ms	9628 KB	Output is correct
5	Correct	65 ms	9692 KB	Output is correct
6	Correct	67 ms	9676 KB	Output is correct
7	Correct	66 ms	9648 KB	Output is correct
8	Correct	69 ms	9704 KB	Output is correct
9	Correct	78 ms	9632 KB	Output is correct
10	Correct	82 ms	9708 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	50 ms	12900 KB	Output is correct
2	Correct	50 ms	13472 KB	Output is correct
3	Correct	50 ms	13464 KB	Output is correct
4	Correct	52 ms	13540 KB	Output is correct
5	Correct	52 ms	13472 KB	Output is correct
6	Correct	53 ms	13536 KB	Output is correct
7	Correct	49 ms	13636 KB	Output is correct
8	Correct	41 ms	13456 KB	Output is correct
9	Correct	35 ms	13408 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	50 ms	12900 KB	Output is correct
2	Correct	50 ms	13472 KB	Output is correct
3	Correct	50 ms	13464 KB	Output is correct
4	Correct	52 ms	13540 KB	Output is correct
5	Correct	52 ms	13472 KB	Output is correct
6	Correct	53 ms	13536 KB	Output is correct
7	Correct	49 ms	13636 KB	Output is correct
8	Correct	41 ms	13456 KB	Output is correct
9	Correct	35 ms	13408 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	61 ms	10556 KB	Output is correct
12	Correct	61 ms	10556 KB	Output is correct
13	Correct	62 ms	10556 KB	Output is correct
14	Correct	69 ms	10608 KB	Output is correct
15	Correct	62 ms	10556 KB	Output is correct
16	Correct	61 ms	10556 KB	Output is correct
17	Correct	60 ms	10700 KB	Output is correct
18	Correct	39 ms	10556 KB	Output is correct
19	Correct	40 ms	10624 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2644 KB	Output is correct
2	Correct	2 ms	2644 KB	Output is correct
3	Correct	2 ms	2644 KB	Output is correct
4	Correct	1 ms	2644 KB	Output is correct
5	Correct	1 ms	2644 KB	Output is correct
6	Correct	1 ms	2644 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	1 ms	2644 KB	Output is correct
9	Correct	2 ms	2676 KB	Output is correct
10	Correct	1 ms	2676 KB	Output is correct

Subtask #5
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2644 KB	Output is correct
2	Correct	2 ms	2644 KB	Output is correct
3	Correct	2 ms	2644 KB	Output is correct
4	Correct	1 ms	2644 KB	Output is correct
5	Correct	1 ms	2644 KB	Output is correct
6	Correct	1 ms	2644 KB	Output is correct
7	Correct	2 ms	2644 KB	Output is correct
8	Correct	1 ms	2644 KB	Output is correct
9	Correct	2 ms	2676 KB	Output is correct
10	Correct	1 ms	2676 KB	Output is correct
11	Correct	5 ms	3028 KB	Output is correct
12	Correct	5 ms	3056 KB	Output is correct
13	Correct	5 ms	3028 KB	Output is correct
14	Correct	5 ms	3028 KB	Output is correct
15	Correct	5 ms	3028 KB	Output is correct
16	Correct	6 ms	3076 KB	Output is correct
17	Correct	4 ms	3068 KB	Output is correct
18	Correct	7 ms	3068 KB	Output is correct
19	Correct	4 ms	2900 KB	Output is correct
20	Correct	1 ms	2672 KB	Output is correct

Subtask #6
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	50 ms	12900 KB	Output is correct
2	Correct	50 ms	13472 KB	Output is correct
3	Correct	50 ms	13464 KB	Output is correct
4	Correct	52 ms	13540 KB	Output is correct
5	Correct	52 ms	13472 KB	Output is correct
6	Correct	53 ms	13536 KB	Output is correct
7	Correct	49 ms	13636 KB	Output is correct
8	Correct	41 ms	13456 KB	Output is correct
9	Correct	35 ms	13408 KB	Output is correct
10	Correct	1 ms	2644 KB	Output is correct
11	Correct	61 ms	10556 KB	Output is correct
12	Correct	61 ms	10556 KB	Output is correct
13	Correct	62 ms	10556 KB	Output is correct
14	Correct	69 ms	10608 KB	Output is correct
15	Correct	62 ms	10556 KB	Output is correct
16	Correct	61 ms	10556 KB	Output is correct
17	Correct	60 ms	10700 KB	Output is correct
18	Correct	39 ms	10556 KB	Output is correct
19	Correct	40 ms	10624 KB	Output is correct
20	Correct	2 ms	2644 KB	Output is correct
21	Correct	75 ms	11340 KB	Output is correct
22	Correct	74 ms	11340 KB	Output is correct
23	Correct	73 ms	11436 KB	Output is correct
24	Correct	79 ms	11384 KB	Output is correct
25	Correct	84 ms	11440 KB	Output is correct
26	Correct	80 ms	11436 KB	Output is correct
27	Correct	74 ms	11328 KB	Output is correct
28	Correct	48 ms	11340 KB	Output is correct
29	Correct	48 ms	11412 KB	Output is correct
30	Correct	2 ms	2644 KB	Output is correct

Subtask #7
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2644 KB	Output is correct
2	Correct	74 ms	9712 KB	Output is correct
3	Correct	71 ms	9652 KB	Output is correct
4	Correct	66 ms	9628 KB	Output is correct
5	Correct	65 ms	9692 KB	Output is correct
6	Correct	67 ms	9676 KB	Output is correct
7	Correct	66 ms	9648 KB	Output is correct
8	Correct	69 ms	9704 KB	Output is correct
9	Correct	78 ms	9632 KB	Output is correct
10	Correct	82 ms	9708 KB	Output is correct
11	Correct	50 ms	12900 KB	Output is correct
12	Correct	50 ms	13472 KB	Output is correct
13	Correct	50 ms	13464 KB	Output is correct
14	Correct	52 ms	13540 KB	Output is correct
15	Correct	52 ms	13472 KB	Output is correct
16	Correct	53 ms	13536 KB	Output is correct
17	Correct	49 ms	13636 KB	Output is correct
18	Correct	41 ms	13456 KB	Output is correct
19	Correct	35 ms	13408 KB	Output is correct
20	Correct	1 ms	2644 KB	Output is correct
21	Correct	61 ms	10556 KB	Output is correct
22	Correct	61 ms	10556 KB	Output is correct
23	Correct	62 ms	10556 KB	Output is correct
24	Correct	69 ms	10608 KB	Output is correct
25	Correct	62 ms	10556 KB	Output is correct
26	Correct	61 ms	10556 KB	Output is correct
27	Correct	60 ms	10700 KB	Output is correct
28	Correct	39 ms	10556 KB	Output is correct
29	Correct	40 ms	10624 KB	Output is correct
30	Correct	2 ms	2644 KB	Output is correct
31	Correct	2 ms	2644 KB	Output is correct
32	Correct	2 ms	2644 KB	Output is correct
33	Correct	2 ms	2644 KB	Output is correct
34	Correct	1 ms	2644 KB	Output is correct
35	Correct	1 ms	2644 KB	Output is correct
36	Correct	1 ms	2644 KB	Output is correct
37	Correct	2 ms	2644 KB	Output is correct
38	Correct	1 ms	2644 KB	Output is correct
39	Correct	2 ms	2676 KB	Output is correct
40	Correct	1 ms	2676 KB	Output is correct
41	Correct	5 ms	3028 KB	Output is correct
42	Correct	5 ms	3056 KB	Output is correct
43	Correct	5 ms	3028 KB	Output is correct
44	Correct	5 ms	3028 KB	Output is correct
45	Correct	5 ms	3028 KB	Output is correct
46	Correct	6 ms	3076 KB	Output is correct
47	Correct	4 ms	3068 KB	Output is correct
48	Correct	7 ms	3068 KB	Output is correct
49	Correct	4 ms	2900 KB	Output is correct
50	Correct	1 ms	2672 KB	Output is correct
51	Correct	75 ms	11340 KB	Output is correct
52	Correct	74 ms	11340 KB	Output is correct
53	Correct	73 ms	11436 KB	Output is correct
54	Correct	79 ms	11384 KB	Output is correct
55	Correct	84 ms	11440 KB	Output is correct
56	Correct	80 ms	11436 KB	Output is correct
57	Correct	74 ms	11328 KB	Output is correct
58	Correct	48 ms	11340 KB	Output is correct
59	Correct	48 ms	11412 KB	Output is correct
60	Correct	2 ms	2644 KB	Output is correct
61	Correct	120 ms	15228 KB	Output is correct
62	Correct	125 ms	15264 KB	Output is correct
63	Correct	114 ms	15244 KB	Output is correct
64	Correct	95 ms	15240 KB	Output is correct
65	Correct	124 ms	15248 KB	Output is correct
66	Correct	122 ms	15208 KB	Output is correct
67	Correct	96 ms	15204 KB	Output is correct
68	Correct	111 ms	15272 KB	Output is correct
69	Correct	80 ms	11560 KB	Output is correct
70	Correct	2 ms	2644 KB	Output is correct

답안 #585884

Compilation message

Subtask #1 2.0 / 2.0

Subtask #2 4.0 / 4.0

Subtask #3 9.0 / 9.0

Subtask #4 36.0 / 36.0

Subtask #5 28.0 / 28.0

Subtask #6 9.0 / 9.0

Subtask #7 12.0 / 12.0

Subtask #1
2.0 / 2.0

Subtask #2
4.0 / 4.0

Subtask #3
9.0 / 9.0

Subtask #4
36.0 / 36.0

Subtask #5
28.0 / 28.0

Subtask #6
9.0 / 9.0

Subtask #7
12.0 / 12.0