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답안 #851428

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
851428 2023-09-19T18:10:07 Z NamPE Mountains (NOI20_mountains) C++17
100 / 100
 695 ms 27288 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

#include <ext/pb_ds/assoc_container.hpp>

using namespace __gnu_pbds;

template <class T>
using indexed_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

int main() {
    ios::sync_with_stdio(0);
    cout.tie(0);
    cin.tie(0);
    
    ll n;
    cin >> n;

    vector<ll> h(n);

    for (ll& i : h) {
        cin >> i;
    }

    indexed_set<pair<ll, ll>> l, r;
    ll id = 0;

    for (ll i : h) {
        r.insert({i, id});
        id++;
    }

    ll ans = 0;

    for (ll i : h) {
        r.erase(r.lower_bound({i, 0}));

        ll a = l.order_of_key({i - 1, INT_MAX});
        ll b = r.order_of_key({i - 1, INT_MAX});

        ans += a * b;

        l.insert({i, id});
        id++;
    }

    cout << ans;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 521 ms 21348 KB Output is correct
3 Correct 512 ms 26876 KB Output is correct
4 Correct 528 ms 26952 KB Output is correct
5 Correct 528 ms 27048 KB Output is correct
6 Correct 519 ms 27016 KB Output is correct
7 Correct 490 ms 27112 KB Output is correct
8 Correct 521 ms 26928 KB Output is correct
9 Correct 522 ms 26996 KB Output is correct
10 Correct 523 ms 27052 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 274 ms 21400 KB Output is correct
2 Correct 280 ms 21984 KB Output is correct
3 Correct 277 ms 22064 KB Output is correct
4 Correct 281 ms 22100 KB Output is correct
5 Correct 266 ms 22028 KB Output is correct
6 Correct 279 ms 22048 KB Output is correct
7 Correct 259 ms 22100 KB Output is correct
8 Correct 502 ms 22096 KB Output is correct
9 Correct 498 ms 22088 KB Output is correct
10 Correct 0 ms 344 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 274 ms 21400 KB Output is correct
2 Correct 280 ms 21984 KB Output is correct
3 Correct 277 ms 22064 KB Output is correct
4 Correct 281 ms 22100 KB Output is correct
5 Correct 266 ms 22028 KB Output is correct
6 Correct 279 ms 22048 KB Output is correct
7 Correct 259 ms 22100 KB Output is correct
8 Correct 502 ms 22096 KB Output is correct
9 Correct 498 ms 22088 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 544 ms 22176 KB Output is correct
12 Correct 503 ms 22332 KB Output is correct
13 Correct 487 ms 22400 KB Output is correct
14 Correct 550 ms 22316 KB Output is correct
15 Correct 518 ms 22328 KB Output is correct
16 Correct 513 ms 22232 KB Output is correct
17 Correct 516 ms 22328 KB Output is correct
18 Correct 505 ms 22356 KB Output is correct
19 Correct 483 ms 22444 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 9 ms 1116 KB Output is correct
12 Correct 9 ms 1284 KB Output is correct
13 Correct 9 ms 1112 KB Output is correct
14 Correct 12 ms 1116 KB Output is correct
15 Correct 9 ms 1116 KB Output is correct
16 Correct 10 ms 1368 KB Output is correct
17 Correct 9 ms 1116 KB Output is correct
18 Correct 9 ms 1116 KB Output is correct
19 Correct 9 ms 1116 KB Output is correct
20 Correct 0 ms 344 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 274 ms 21400 KB Output is correct
2 Correct 280 ms 21984 KB Output is correct
3 Correct 277 ms 22064 KB Output is correct
4 Correct 281 ms 22100 KB Output is correct
5 Correct 266 ms 22028 KB Output is correct
6 Correct 279 ms 22048 KB Output is correct
7 Correct 259 ms 22100 KB Output is correct
8 Correct 502 ms 22096 KB Output is correct
9 Correct 498 ms 22088 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 544 ms 22176 KB Output is correct
12 Correct 503 ms 22332 KB Output is correct
13 Correct 487 ms 22400 KB Output is correct
14 Correct 550 ms 22316 KB Output is correct
15 Correct 518 ms 22328 KB Output is correct
16 Correct 513 ms 22232 KB Output is correct
17 Correct 516 ms 22328 KB Output is correct
18 Correct 505 ms 22356 KB Output is correct
19 Correct 483 ms 22444 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 606 ms 23276 KB Output is correct
22 Correct 579 ms 23112 KB Output is correct
23 Correct 670 ms 23204 KB Output is correct
24 Correct 626 ms 23120 KB Output is correct
25 Correct 646 ms 23120 KB Output is correct
26 Correct 612 ms 23120 KB Output is correct
27 Correct 559 ms 23116 KB Output is correct
28 Correct 506 ms 23072 KB Output is correct
29 Correct 508 ms 23384 KB Output is correct
30 Correct 0 ms 348 KB Output is correct

Subtask #7
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 521 ms 21348 KB Output is correct
3 Correct 512 ms 26876 KB Output is correct
4 Correct 528 ms 26952 KB Output is correct
5 Correct 528 ms 27048 KB Output is correct
6 Correct 519 ms 27016 KB Output is correct
7 Correct 490 ms 27112 KB Output is correct
8 Correct 521 ms 26928 KB Output is correct
9 Correct 522 ms 26996 KB Output is correct
10 Correct 523 ms 27052 KB Output is correct
11 Correct 274 ms 21400 KB Output is correct
12 Correct 280 ms 21984 KB Output is correct
13 Correct 277 ms 22064 KB Output is correct
14 Correct 281 ms 22100 KB Output is correct
15 Correct 266 ms 22028 KB Output is correct
16 Correct 279 ms 22048 KB Output is correct
17 Correct 259 ms 22100 KB Output is correct
18 Correct 502 ms 22096 KB Output is correct
19 Correct 498 ms 22088 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 544 ms 22176 KB Output is correct
22 Correct 503 ms 22332 KB Output is correct
23 Correct 487 ms 22400 KB Output is correct
24 Correct 550 ms 22316 KB Output is correct
25 Correct 518 ms 22328 KB Output is correct
26 Correct 513 ms 22232 KB Output is correct
27 Correct 516 ms 22328 KB Output is correct
28 Correct 505 ms 22356 KB Output is correct
29 Correct 483 ms 22444 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 9 ms 1116 KB Output is correct
42 Correct 9 ms 1284 KB Output is correct
43 Correct 9 ms 1112 KB Output is correct
44 Correct 12 ms 1116 KB Output is correct
45 Correct 9 ms 1116 KB Output is correct
46 Correct 10 ms 1368 KB Output is correct
47 Correct 9 ms 1116 KB Output is correct
48 Correct 9 ms 1116 KB Output is correct
49 Correct 9 ms 1116 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 606 ms 23276 KB Output is correct
52 Correct 579 ms 23112 KB Output is correct
53 Correct 670 ms 23204 KB Output is correct
54 Correct 626 ms 23120 KB Output is correct
55 Correct 646 ms 23120 KB Output is correct
56 Correct 612 ms 23120 KB Output is correct
57 Correct 559 ms 23116 KB Output is correct
58 Correct 506 ms 23072 KB Output is correct
59 Correct 508 ms 23384 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 695 ms 26960 KB Output is correct
62 Correct 605 ms 26960 KB Output is correct
63 Correct 649 ms 27060 KB Output is correct
64 Correct 586 ms 26960 KB Output is correct
65 Correct 601 ms 26964 KB Output is correct
66 Correct 596 ms 26992 KB Output is correct
67 Correct 607 ms 27288 KB Output is correct
68 Correct 631 ms 27132 KB Output is correct
69 Correct 569 ms 23328 KB Output is correct
70 Correct 0 ms 348 KB Output is correct