oj.uz

답안 #337660

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
337660 2020-12-21T11:19:38 Z Vladth11 Mountains (NOI20_mountains) C++14
100 / 100
 215 ms 18204 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define debug(x) cerr << #x << " " << x << "\n"
#define debug_with_space(x) cerr << #x << " " << x << " "

using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef pair <ll, ll> pii;
typedef pair <ll, pii> piii;
typedef tree <pii, null_type, less <pii>, rb_tree_tag, tree_order_statistics_node_update> OST;

const ll NMAX = 300001;
const ll INF = 1e9;
const ll MOD = 1000000007;
const ll BLOCK = 101;
const ll nr_of_bits = 35;

struct ura{
    ll i, v, idx;
} v[NMAX];

bool cmp(ura a, ura b){
    return a.i < b.i;
}

bool cmpp(ura a, ura b){
    return a.idx < b.idx;
}

ll st[NMAX], n, dr[NMAX];
ll aib[NMAX + 5];

void update(ll x, ll val){
    for(ll i = x; i <= n; i += i&(-i))
        aib[i] += val;
}

ll query(ll x){
    ll val = 0;
    for(ll i = x; i > 0; i -= i&(-i))
        val += aib[i];
    return val;
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    ll i;
    cin >> n;
    for(i = 1; i <= n; i++){
        cin >> v[i].i;
        v[i].idx = i;
    }
    ll cnt = 1;
    sort(v + 1, v + n + 1, cmp);
    for(i = 1; i <= n; i++){
        if(i > 1 && v[i].i != v[i - 1].i)
            cnt++;
        v[i].v = cnt;
    }
    sort(v + 1, v + n + 1, cmpp);
    for(i = 1; i <= n; i++){
        update(v[i].v, 1);
        st[i] = query(v[i].v - 1);
    }
    ll sol = 0;
    for(i = 1; i <= n; i++){
        update(v[i].v, -1);
    }
    for(i = n; i >= 1; i--){
        update(v[i].v, 1);
        dr[i] = query(v[i].v - 1);
        sol += 1LL * st[i] * dr[i];
    }
    cout << sol;
    return 0;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 154 ms 18128 KB Output is correct
3 Correct 156 ms 18156 KB Output is correct
4 Correct 152 ms 18156 KB Output is correct
5 Correct 153 ms 18156 KB Output is correct
6 Correct 151 ms 18156 KB Output is correct
7 Correct 151 ms 18156 KB Output is correct
8 Correct 154 ms 18156 KB Output is correct
9 Correct 158 ms 17004 KB Output is correct
10 Correct 156 ms 17004 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 155 ms 12140 KB Output is correct
2 Correct 160 ms 12140 KB Output is correct
3 Correct 158 ms 12140 KB Output is correct
4 Correct 155 ms 12140 KB Output is correct
5 Correct 156 ms 12140 KB Output is correct
6 Correct 154 ms 12140 KB Output is correct
7 Correct 154 ms 12140 KB Output is correct
8 Correct 147 ms 12140 KB Output is correct
9 Correct 149 ms 12140 KB Output is correct
10 Correct 1 ms 380 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 155 ms 12140 KB Output is correct
2 Correct 160 ms 12140 KB Output is correct
3 Correct 158 ms 12140 KB Output is correct
4 Correct 155 ms 12140 KB Output is correct
5 Correct 156 ms 12140 KB Output is correct
6 Correct 154 ms 12140 KB Output is correct
7 Correct 154 ms 12140 KB Output is correct
8 Correct 147 ms 12140 KB Output is correct
9 Correct 149 ms 12140 KB Output is correct
10 Correct 1 ms 380 KB Output is correct
11 Correct 167 ms 12140 KB Output is correct
12 Correct 165 ms 12140 KB Output is correct
13 Correct 163 ms 12140 KB Output is correct
14 Correct 166 ms 12140 KB Output is correct
15 Correct 164 ms 12140 KB Output is correct
16 Correct 166 ms 12268 KB Output is correct
17 Correct 167 ms 12140 KB Output is correct
18 Correct 131 ms 12140 KB Output is correct
19 Correct 132 ms 12140 KB Output is correct
20 Correct 1 ms 364 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 360 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 8 ms 1004 KB Output is correct
12 Correct 7 ms 1004 KB Output is correct
13 Correct 6 ms 1004 KB Output is correct
14 Correct 6 ms 1004 KB Output is correct
15 Correct 6 ms 1004 KB Output is correct
16 Correct 6 ms 1004 KB Output is correct
17 Correct 7 ms 1004 KB Output is correct
18 Correct 6 ms 1004 KB Output is correct
19 Correct 6 ms 768 KB Output is correct
20 Correct 1 ms 364 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 155 ms 12140 KB Output is correct
2 Correct 160 ms 12140 KB Output is correct
3 Correct 158 ms 12140 KB Output is correct
4 Correct 155 ms 12140 KB Output is correct
5 Correct 156 ms 12140 KB Output is correct
6 Correct 154 ms 12140 KB Output is correct
7 Correct 154 ms 12140 KB Output is correct
8 Correct 147 ms 12140 KB Output is correct
9 Correct 149 ms 12140 KB Output is correct
10 Correct 1 ms 380 KB Output is correct
11 Correct 167 ms 12140 KB Output is correct
12 Correct 165 ms 12140 KB Output is correct
13 Correct 163 ms 12140 KB Output is correct
14 Correct 166 ms 12140 KB Output is correct
15 Correct 164 ms 12140 KB Output is correct
16 Correct 166 ms 12268 KB Output is correct
17 Correct 167 ms 12140 KB Output is correct
18 Correct 131 ms 12140 KB Output is correct
19 Correct 132 ms 12140 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 179 ms 12780 KB Output is correct
22 Correct 178 ms 12780 KB Output is correct
23 Correct 180 ms 12908 KB Output is correct
24 Correct 178 ms 12780 KB Output is correct
25 Correct 178 ms 12780 KB Output is correct
26 Correct 187 ms 12780 KB Output is correct
27 Correct 185 ms 12876 KB Output is correct
28 Correct 126 ms 12908 KB Output is correct
29 Correct 123 ms 12908 KB Output is correct
30 Correct 1 ms 512 KB Output is correct

Subtask #7
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 154 ms 18128 KB Output is correct
3 Correct 156 ms 18156 KB Output is correct
4 Correct 152 ms 18156 KB Output is correct
5 Correct 153 ms 18156 KB Output is correct
6 Correct 151 ms 18156 KB Output is correct
7 Correct 151 ms 18156 KB Output is correct
8 Correct 154 ms 18156 KB Output is correct
9 Correct 158 ms 17004 KB Output is correct
10 Correct 156 ms 17004 KB Output is correct
11 Correct 155 ms 12140 KB Output is correct
12 Correct 160 ms 12140 KB Output is correct
13 Correct 158 ms 12140 KB Output is correct
14 Correct 155 ms 12140 KB Output is correct
15 Correct 156 ms 12140 KB Output is correct
16 Correct 154 ms 12140 KB Output is correct
17 Correct 154 ms 12140 KB Output is correct
18 Correct 147 ms 12140 KB Output is correct
19 Correct 149 ms 12140 KB Output is correct
20 Correct 1 ms 380 KB Output is correct
21 Correct 167 ms 12140 KB Output is correct
22 Correct 165 ms 12140 KB Output is correct
23 Correct 163 ms 12140 KB Output is correct
24 Correct 166 ms 12140 KB Output is correct
25 Correct 164 ms 12140 KB Output is correct
26 Correct 166 ms 12268 KB Output is correct
27 Correct 167 ms 12140 KB Output is correct
28 Correct 131 ms 12140 KB Output is correct
29 Correct 132 ms 12140 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 360 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 8 ms 1004 KB Output is correct
42 Correct 7 ms 1004 KB Output is correct
43 Correct 6 ms 1004 KB Output is correct
44 Correct 6 ms 1004 KB Output is correct
45 Correct 6 ms 1004 KB Output is correct
46 Correct 6 ms 1004 KB Output is correct
47 Correct 7 ms 1004 KB Output is correct
48 Correct 6 ms 1004 KB Output is correct
49 Correct 6 ms 768 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 179 ms 12780 KB Output is correct
52 Correct 178 ms 12780 KB Output is correct
53 Correct 180 ms 12908 KB Output is correct
54 Correct 178 ms 12780 KB Output is correct
55 Correct 178 ms 12780 KB Output is correct
56 Correct 187 ms 12780 KB Output is correct
57 Correct 185 ms 12876 KB Output is correct
58 Correct 126 ms 12908 KB Output is correct
59 Correct 123 ms 12908 KB Output is correct
60 Correct 1 ms 512 KB Output is correct
61 Correct 210 ms 18156 KB Output is correct
62 Correct 212 ms 18156 KB Output is correct
63 Correct 213 ms 18156 KB Output is correct
64 Correct 211 ms 18156 KB Output is correct
65 Correct 212 ms 18204 KB Output is correct
66 Correct 209 ms 18156 KB Output is correct
67 Correct 215 ms 18156 KB Output is correct
68 Correct 211 ms 17004 KB Output is correct
69 Correct 183 ms 14956 KB Output is correct
70 Correct 1 ms 364 KB Output is correct