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Submission #224562

# Submission time Handle Problem Language Result Execution time Memory
224562 2020-04-18T12:07:14 Z Berted Mountains (NOI20_mountains) C++14
100 / 100
 135 ms 8808 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#define ll long long
#define pii pair<ll, int>
#define fst first
#define snd second
using namespace std;
int n, fenwick[300001] = {};
vector<pii> dt;
ll to = 0;
int query(int x)
{
	int to = 0;
	for (; x; x -= x & (-x)) {to += fenwick[x];}
	return to;
}
void upd(int x)
{
	for (; x <= n; x += x & (-x)) {fenwick[x]++;}
}
int main()
{
	ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n;
	for (int i = 0; i < n; i++) {ll x; cin >> x; dt.push_back({x, i + 1});}
	sort(dt.begin(), dt.end());
	int i = 0;
	while (i < n)
	{
		to += (ll)query(dt[i].snd) * (i - query(dt[i].snd));
		int j = i + 1;
		for (; j < n && dt[j].fst == dt[j - 1].fst; j++) {to += (ll)query(dt[j].snd) * (i - query(dt[j].snd));}
		for (; i < j; i++) {upd(dt[i].snd);}
	}
	cout << to << "\n";
	return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 91 ms 8672 KB Output is correct
3 Correct 95 ms 8672 KB Output is correct
4 Correct 108 ms 8672 KB Output is correct
5 Correct 101 ms 8672 KB Output is correct
6 Correct 95 ms 8676 KB Output is correct
7 Correct 91 ms 8672 KB Output is correct
8 Correct 92 ms 8680 KB Output is correct
9 Correct 97 ms 8676 KB Output is correct
10 Correct 102 ms 8808 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 8688 KB Output is correct
2 Correct 77 ms 8688 KB Output is correct
3 Correct 70 ms 8688 KB Output is correct
4 Correct 69 ms 8688 KB Output is correct
5 Correct 68 ms 8680 KB Output is correct
6 Correct 69 ms 8680 KB Output is correct
7 Correct 68 ms 8680 KB Output is correct
8 Correct 49 ms 8688 KB Output is correct
9 Correct 50 ms 8736 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 8688 KB Output is correct
2 Correct 77 ms 8688 KB Output is correct
3 Correct 70 ms 8688 KB Output is correct
4 Correct 69 ms 8688 KB Output is correct
5 Correct 68 ms 8680 KB Output is correct
6 Correct 69 ms 8680 KB Output is correct
7 Correct 68 ms 8680 KB Output is correct
8 Correct 49 ms 8688 KB Output is correct
9 Correct 50 ms 8736 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 81 ms 8680 KB Output is correct
12 Correct 82 ms 8716 KB Output is correct
13 Correct 87 ms 8708 KB Output is correct
14 Correct 80 ms 8676 KB Output is correct
15 Correct 82 ms 8680 KB Output is correct
16 Correct 82 ms 8680 KB Output is correct
17 Correct 85 ms 8688 KB Output is correct
18 Correct 51 ms 8676 KB Output is correct
19 Correct 51 ms 8688 KB Output is correct
20 Correct 5 ms 384 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 8 ms 768 KB Output is correct
12 Correct 8 ms 768 KB Output is correct
13 Correct 8 ms 768 KB Output is correct
14 Correct 8 ms 768 KB Output is correct
15 Correct 8 ms 768 KB Output is correct
16 Correct 8 ms 768 KB Output is correct
17 Correct 8 ms 768 KB Output is correct
18 Correct 8 ms 768 KB Output is correct
19 Correct 7 ms 768 KB Output is correct
20 Correct 4 ms 384 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 8688 KB Output is correct
2 Correct 77 ms 8688 KB Output is correct
3 Correct 70 ms 8688 KB Output is correct
4 Correct 69 ms 8688 KB Output is correct
5 Correct 68 ms 8680 KB Output is correct
6 Correct 69 ms 8680 KB Output is correct
7 Correct 68 ms 8680 KB Output is correct
8 Correct 49 ms 8688 KB Output is correct
9 Correct 50 ms 8736 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 81 ms 8680 KB Output is correct
12 Correct 82 ms 8716 KB Output is correct
13 Correct 87 ms 8708 KB Output is correct
14 Correct 80 ms 8676 KB Output is correct
15 Correct 82 ms 8680 KB Output is correct
16 Correct 82 ms 8680 KB Output is correct
17 Correct 85 ms 8688 KB Output is correct
18 Correct 51 ms 8676 KB Output is correct
19 Correct 51 ms 8688 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 91 ms 8680 KB Output is correct
22 Correct 93 ms 8676 KB Output is correct
23 Correct 97 ms 8676 KB Output is correct
24 Correct 95 ms 8676 KB Output is correct
25 Correct 94 ms 8688 KB Output is correct
26 Correct 102 ms 8676 KB Output is correct
27 Correct 95 ms 8672 KB Output is correct
28 Correct 69 ms 8676 KB Output is correct
29 Correct 68 ms 8676 KB Output is correct
30 Correct 5 ms 384 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 91 ms 8672 KB Output is correct
3 Correct 95 ms 8672 KB Output is correct
4 Correct 108 ms 8672 KB Output is correct
5 Correct 101 ms 8672 KB Output is correct
6 Correct 95 ms 8676 KB Output is correct
7 Correct 91 ms 8672 KB Output is correct
8 Correct 92 ms 8680 KB Output is correct
9 Correct 97 ms 8676 KB Output is correct
10 Correct 102 ms 8808 KB Output is correct
11 Correct 66 ms 8688 KB Output is correct
12 Correct 77 ms 8688 KB Output is correct
13 Correct 70 ms 8688 KB Output is correct
14 Correct 69 ms 8688 KB Output is correct
15 Correct 68 ms 8680 KB Output is correct
16 Correct 69 ms 8680 KB Output is correct
17 Correct 68 ms 8680 KB Output is correct
18 Correct 49 ms 8688 KB Output is correct
19 Correct 50 ms 8736 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 81 ms 8680 KB Output is correct
22 Correct 82 ms 8716 KB Output is correct
23 Correct 87 ms 8708 KB Output is correct
24 Correct 80 ms 8676 KB Output is correct
25 Correct 82 ms 8680 KB Output is correct
26 Correct 82 ms 8680 KB Output is correct
27 Correct 85 ms 8688 KB Output is correct
28 Correct 51 ms 8676 KB Output is correct
29 Correct 51 ms 8688 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 8 ms 768 KB Output is correct
42 Correct 8 ms 768 KB Output is correct
43 Correct 8 ms 768 KB Output is correct
44 Correct 8 ms 768 KB Output is correct
45 Correct 8 ms 768 KB Output is correct
46 Correct 8 ms 768 KB Output is correct
47 Correct 8 ms 768 KB Output is correct
48 Correct 8 ms 768 KB Output is correct
49 Correct 7 ms 768 KB Output is correct
50 Correct 4 ms 384 KB Output is correct
51 Correct 91 ms 8680 KB Output is correct
52 Correct 93 ms 8676 KB Output is correct
53 Correct 97 ms 8676 KB Output is correct
54 Correct 95 ms 8676 KB Output is correct
55 Correct 94 ms 8688 KB Output is correct
56 Correct 102 ms 8676 KB Output is correct
57 Correct 95 ms 8672 KB Output is correct
58 Correct 69 ms 8676 KB Output is correct
59 Correct 68 ms 8676 KB Output is correct
60 Correct 5 ms 384 KB Output is correct
61 Correct 121 ms 8672 KB Output is correct
62 Correct 118 ms 8676 KB Output is correct
63 Correct 121 ms 8672 KB Output is correct
64 Correct 119 ms 8672 KB Output is correct
65 Correct 120 ms 8676 KB Output is correct
66 Correct 117 ms 8672 KB Output is correct
67 Correct 118 ms 8680 KB Output is correct
68 Correct 135 ms 8672 KB Output is correct
69 Correct 96 ms 8676 KB Output is correct
70 Correct 5 ms 384 KB Output is correct