oj.uz

Submission #372755

# Submission time Handle Problem Language Result Execution time Memory
372755 2021-03-01T13:25:16 Z SnowFlake7 Mountains (NOI20_mountains) C++14
100 / 100
 378 ms 20204 KB 
#include <bits/stdc++.h>

using namespace std;

struct nr {
    long long i,v,idx;
}v[300005];
long long st[300005],dr[300005],aib[300005],n,s;

bool cmp1(nr a, nr b) {
    return a.i < b.i;
}
bool cmp2(nr a, nr b) {
    return a.idx < b.idx;
}
void update(long long a, long long b) {
    for(long long i = a;i <= n;i += (i&(-i)))
        aib[i] += b;
}
long long query(long long a) {
    s = 0;
    for(long long i = a;i > 0;i -= (i&(-i)))
        s += aib[i];
    return s;
}
int main()
{
    long long cnt = 1,ans = 0;
    cin >> n;
    for(int i = 1;i <= n;i++) {
        cin >> v[i].i;
        v[i].idx = i;
    }
    sort(v + 1, v + n + 1, cmp1);
    v[1].v = 1;
    for(int i = 2;i <= n;i++) {
        if(i > 1 && v[i].i != v[i - 1].i)
            cnt++;
        v[i].v = cnt;
    }
    sort(v + 1, v + n + 1, cmp2);
    for(int i = 1;i <= n;i++) {
        update(v[i].v, 1);
        st[i] = query(v[i].v - 1);
    }
    for(int i = 1;i <= n;i++)
        update(v[i].v, -1);
    for(int i = n;i >= 1;i--) {
        update(v[i].v, 1);
        dr[i] = query(v[i].v - 1);
        ans += st[i] * dr[i];
    }
    cout << ans;
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 307 ms 20076 KB Output is correct
3 Correct 305 ms 19948 KB Output is correct
4 Correct 305 ms 19948 KB Output is correct
5 Correct 304 ms 19948 KB Output is correct
6 Correct 309 ms 20076 KB Output is correct
7 Correct 310 ms 19948 KB Output is correct
8 Correct 309 ms 19948 KB Output is correct
9 Correct 330 ms 18924 KB Output is correct
10 Correct 320 ms 18912 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 193 ms 12652 KB Output is correct
2 Correct 186 ms 12652 KB Output is correct
3 Correct 192 ms 12652 KB Output is correct
4 Correct 199 ms 12652 KB Output is correct
5 Correct 204 ms 12780 KB Output is correct
6 Correct 206 ms 12652 KB Output is correct
7 Correct 200 ms 12800 KB Output is correct
8 Correct 177 ms 12652 KB Output is correct
9 Correct 186 ms 12780 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 193 ms 12652 KB Output is correct
2 Correct 186 ms 12652 KB Output is correct
3 Correct 192 ms 12652 KB Output is correct
4 Correct 199 ms 12652 KB Output is correct
5 Correct 204 ms 12780 KB Output is correct
6 Correct 206 ms 12652 KB Output is correct
7 Correct 200 ms 12800 KB Output is correct
8 Correct 177 ms 12652 KB Output is correct
9 Correct 186 ms 12780 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 209 ms 13108 KB Output is correct
12 Correct 202 ms 12908 KB Output is correct
13 Correct 203 ms 13164 KB Output is correct
14 Correct 202 ms 13036 KB Output is correct
15 Correct 203 ms 12908 KB Output is correct
16 Correct 202 ms 13036 KB Output is correct
17 Correct 207 ms 13036 KB Output is correct
18 Correct 173 ms 13072 KB Output is correct
19 Correct 171 ms 12908 KB Output is correct
20 Correct 1 ms 364 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 2 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 364 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

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 2 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 364 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 11 ms 1004 KB Output is correct
12 Correct 11 ms 1004 KB Output is correct
13 Correct 11 ms 1004 KB Output is correct
14 Correct 11 ms 1004 KB Output is correct
15 Correct 12 ms 1004 KB Output is correct
16 Correct 11 ms 1004 KB Output is correct
17 Correct 11 ms 1004 KB Output is correct
18 Correct 11 ms 1004 KB Output is correct
19 Correct 6 ms 748 KB Output is correct
20 Correct 1 ms 364 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 193 ms 12652 KB Output is correct
2 Correct 186 ms 12652 KB Output is correct
3 Correct 192 ms 12652 KB Output is correct
4 Correct 199 ms 12652 KB Output is correct
5 Correct 204 ms 12780 KB Output is correct
6 Correct 206 ms 12652 KB Output is correct
7 Correct 200 ms 12800 KB Output is correct
8 Correct 177 ms 12652 KB Output is correct
9 Correct 186 ms 12780 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 209 ms 13108 KB Output is correct
12 Correct 202 ms 12908 KB Output is correct
13 Correct 203 ms 13164 KB Output is correct
14 Correct 202 ms 13036 KB Output is correct
15 Correct 203 ms 12908 KB Output is correct
16 Correct 202 ms 13036 KB Output is correct
17 Correct 207 ms 13036 KB Output is correct
18 Correct 173 ms 13072 KB Output is correct
19 Correct 171 ms 12908 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 244 ms 14540 KB Output is correct
22 Correct 244 ms 14572 KB Output is correct
23 Correct 244 ms 14572 KB Output is correct
24 Correct 242 ms 14572 KB Output is correct
25 Correct 251 ms 14572 KB Output is correct
26 Correct 250 ms 14560 KB Output is correct
27 Correct 250 ms 14572 KB Output is correct
28 Correct 188 ms 14540 KB Output is correct
29 Correct 186 ms 14572 KB Output is correct
30 Correct 1 ms 380 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 307 ms 20076 KB Output is correct
3 Correct 305 ms 19948 KB Output is correct
4 Correct 305 ms 19948 KB Output is correct
5 Correct 304 ms 19948 KB Output is correct
6 Correct 309 ms 20076 KB Output is correct
7 Correct 310 ms 19948 KB Output is correct
8 Correct 309 ms 19948 KB Output is correct
9 Correct 330 ms 18924 KB Output is correct
10 Correct 320 ms 18912 KB Output is correct
11 Correct 193 ms 12652 KB Output is correct
12 Correct 186 ms 12652 KB Output is correct
13 Correct 192 ms 12652 KB Output is correct
14 Correct 199 ms 12652 KB Output is correct
15 Correct 204 ms 12780 KB Output is correct
16 Correct 206 ms 12652 KB Output is correct
17 Correct 200 ms 12800 KB Output is correct
18 Correct 177 ms 12652 KB Output is correct
19 Correct 186 ms 12780 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 209 ms 13108 KB Output is correct
22 Correct 202 ms 12908 KB Output is correct
23 Correct 203 ms 13164 KB Output is correct
24 Correct 202 ms 13036 KB Output is correct
25 Correct 203 ms 12908 KB Output is correct
26 Correct 202 ms 13036 KB Output is correct
27 Correct 207 ms 13036 KB Output is correct
28 Correct 173 ms 13072 KB Output is correct
29 Correct 171 ms 12908 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 2 ms 364 KB Output is correct
32 Correct 2 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 364 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 11 ms 1004 KB Output is correct
42 Correct 11 ms 1004 KB Output is correct
43 Correct 11 ms 1004 KB Output is correct
44 Correct 11 ms 1004 KB Output is correct
45 Correct 12 ms 1004 KB Output is correct
46 Correct 11 ms 1004 KB Output is correct
47 Correct 11 ms 1004 KB Output is correct
48 Correct 11 ms 1004 KB Output is correct
49 Correct 6 ms 748 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 244 ms 14540 KB Output is correct
52 Correct 244 ms 14572 KB Output is correct
53 Correct 244 ms 14572 KB Output is correct
54 Correct 242 ms 14572 KB Output is correct
55 Correct 251 ms 14572 KB Output is correct
56 Correct 250 ms 14560 KB Output is correct
57 Correct 250 ms 14572 KB Output is correct
58 Correct 188 ms 14540 KB Output is correct
59 Correct 186 ms 14572 KB Output is correct
60 Correct 1 ms 380 KB Output is correct
61 Correct 378 ms 20100 KB Output is correct
62 Correct 362 ms 20076 KB Output is correct
63 Correct 361 ms 20076 KB Output is correct
64 Correct 360 ms 20076 KB Output is correct
65 Correct 360 ms 19948 KB Output is correct
66 Correct 369 ms 20204 KB Output is correct
67 Correct 364 ms 19920 KB Output is correct
68 Correct 374 ms 18924 KB Output is correct
69 Correct 244 ms 14956 KB Output is correct
70 Correct 1 ms 364 KB Output is correct