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Submission #795596

# Submission time Handle Problem Language Result Execution time Memory
795596 2023-07-27T11:34:29 Z stefanneagu Mountains (NOI20_mountains) C++17
100 / 100
 572 ms 34064 KB 
#include <iostream>
#include <map>
#define int long long

using namespace std;

const int nmax = 3e5 + 7;
int dr[nmax], st[nmax], f[nmax], v[nmax];
map<int, int> mp;

void update(int i) {
    int val = 1;
    while(i < nmax) {
        f[i] += val;
        i += (i & (-i));
    }
}

int query(int i) {
    int sum = 0;
    while(i > 0) {
        sum += f[i];
        i -= (i & (-i));
    }
    return sum;
}

int32_t main() {
    int n;
    cin >> n;
    for(int i = 1; i <= n; i ++) {
        cin >> v[i];
        mp[v[i]];
    }
    int cnt = 2;
    for(auto &it : mp) {
        it.second = cnt;
        cnt ++;
    }
    for(int i = 1; i <= n; i ++) {
        v[i] = mp[v[i]];
    }
    for(int i = 1; i <= n; i ++) {
        dr[i] = query(v[i] - 1);
        update(v[i]);
    }
    for(int i = 0; i < nmax; i ++) {
        f[i] = 0;
    }
    for(int i = n; i >= 1; i --) {
        st[i] = query(v[i] - 1);
        update(v[i]);
    }
    long long ans = 0;
    for(int i = 1; i <= n;  i ++) {
        ans += dr[i] * st[i];
    } 
    cout << ans;
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 268 ms 34064 KB Output is correct
3 Correct 248 ms 33996 KB Output is correct
4 Correct 248 ms 33900 KB Output is correct
5 Correct 242 ms 34008 KB Output is correct
6 Correct 262 ms 33932 KB Output is correct
7 Correct 304 ms 33984 KB Output is correct
8 Correct 253 ms 33972 KB Output is correct
9 Correct 224 ms 25004 KB Output is correct
10 Correct 250 ms 24944 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 10196 KB Output is correct
2 Correct 70 ms 10164 KB Output is correct
3 Correct 73 ms 10240 KB Output is correct
4 Correct 75 ms 10176 KB Output is correct
5 Correct 72 ms 10224 KB Output is correct
6 Correct 70 ms 10244 KB Output is correct
7 Correct 71 ms 10204 KB Output is correct
8 Correct 71 ms 10168 KB Output is correct
9 Correct 68 ms 10188 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 10196 KB Output is correct
2 Correct 70 ms 10164 KB Output is correct
3 Correct 73 ms 10240 KB Output is correct
4 Correct 75 ms 10176 KB Output is correct
5 Correct 72 ms 10224 KB Output is correct
6 Correct 70 ms 10244 KB Output is correct
7 Correct 71 ms 10204 KB Output is correct
8 Correct 71 ms 10168 KB Output is correct
9 Correct 68 ms 10188 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 83 ms 10528 KB Output is correct
12 Correct 83 ms 10432 KB Output is correct
13 Correct 97 ms 10532 KB Output is correct
14 Correct 89 ms 10532 KB Output is correct
15 Correct 83 ms 10484 KB Output is correct
16 Correct 86 ms 10444 KB Output is correct
17 Correct 85 ms 10512 KB Output is correct
18 Correct 74 ms 10540 KB Output is correct
19 Correct 68 ms 10520 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory 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 2 ms 2644 KB Output is correct
5 Correct 2 ms 2620 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2620 KB Output is correct
9 Correct 1 ms 2612 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory 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 2 ms 2644 KB Output is correct
5 Correct 2 ms 2620 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2620 KB Output is correct
9 Correct 1 ms 2612 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 10 ms 3644 KB Output is correct
12 Correct 12 ms 3668 KB Output is correct
13 Correct 10 ms 3644 KB Output is correct
14 Correct 10 ms 3652 KB Output is correct
15 Correct 10 ms 3624 KB Output is correct
16 Correct 10 ms 3684 KB Output is correct
17 Correct 10 ms 3648 KB Output is correct
18 Correct 9 ms 3268 KB Output is correct
19 Correct 4 ms 2900 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 10196 KB Output is correct
2 Correct 70 ms 10164 KB Output is correct
3 Correct 73 ms 10240 KB Output is correct
4 Correct 75 ms 10176 KB Output is correct
5 Correct 72 ms 10224 KB Output is correct
6 Correct 70 ms 10244 KB Output is correct
7 Correct 71 ms 10204 KB Output is correct
8 Correct 71 ms 10168 KB Output is correct
9 Correct 68 ms 10188 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 83 ms 10528 KB Output is correct
12 Correct 83 ms 10432 KB Output is correct
13 Correct 97 ms 10532 KB Output is correct
14 Correct 89 ms 10532 KB Output is correct
15 Correct 83 ms 10484 KB Output is correct
16 Correct 86 ms 10444 KB Output is correct
17 Correct 85 ms 10512 KB Output is correct
18 Correct 74 ms 10540 KB Output is correct
19 Correct 68 ms 10520 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 226 ms 17356 KB Output is correct
22 Correct 225 ms 17316 KB Output is correct
23 Correct 231 ms 17352 KB Output is correct
24 Correct 238 ms 17328 KB Output is correct
25 Correct 226 ms 17336 KB Output is correct
26 Correct 231 ms 17292 KB Output is correct
27 Correct 226 ms 17276 KB Output is correct
28 Correct 133 ms 17244 KB Output is correct
29 Correct 130 ms 17320 KB Output is correct
30 Correct 1 ms 2644 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 268 ms 34064 KB Output is correct
3 Correct 248 ms 33996 KB Output is correct
4 Correct 248 ms 33900 KB Output is correct
5 Correct 242 ms 34008 KB Output is correct
6 Correct 262 ms 33932 KB Output is correct
7 Correct 304 ms 33984 KB Output is correct
8 Correct 253 ms 33972 KB Output is correct
9 Correct 224 ms 25004 KB Output is correct
10 Correct 250 ms 24944 KB Output is correct
11 Correct 72 ms 10196 KB Output is correct
12 Correct 70 ms 10164 KB Output is correct
13 Correct 73 ms 10240 KB Output is correct
14 Correct 75 ms 10176 KB Output is correct
15 Correct 72 ms 10224 KB Output is correct
16 Correct 70 ms 10244 KB Output is correct
17 Correct 71 ms 10204 KB Output is correct
18 Correct 71 ms 10168 KB Output is correct
19 Correct 68 ms 10188 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 83 ms 10528 KB Output is correct
22 Correct 83 ms 10432 KB Output is correct
23 Correct 97 ms 10532 KB Output is correct
24 Correct 89 ms 10532 KB Output is correct
25 Correct 83 ms 10484 KB Output is correct
26 Correct 86 ms 10444 KB Output is correct
27 Correct 85 ms 10512 KB Output is correct
28 Correct 74 ms 10540 KB Output is correct
29 Correct 68 ms 10520 KB Output is correct
30 Correct 1 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 2 ms 2644 KB Output is correct
35 Correct 2 ms 2620 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 2 ms 2620 KB Output is correct
39 Correct 1 ms 2612 KB Output is correct
40 Correct 1 ms 2644 KB Output is correct
41 Correct 10 ms 3644 KB Output is correct
42 Correct 12 ms 3668 KB Output is correct
43 Correct 10 ms 3644 KB Output is correct
44 Correct 10 ms 3652 KB Output is correct
45 Correct 10 ms 3624 KB Output is correct
46 Correct 10 ms 3684 KB Output is correct
47 Correct 10 ms 3648 KB Output is correct
48 Correct 9 ms 3268 KB Output is correct
49 Correct 4 ms 2900 KB Output is correct
50 Correct 1 ms 2644 KB Output is correct
51 Correct 226 ms 17356 KB Output is correct
52 Correct 225 ms 17316 KB Output is correct
53 Correct 231 ms 17352 KB Output is correct
54 Correct 238 ms 17328 KB Output is correct
55 Correct 226 ms 17336 KB Output is correct
56 Correct 231 ms 17292 KB Output is correct
57 Correct 226 ms 17276 KB Output is correct
58 Correct 133 ms 17244 KB Output is correct
59 Correct 130 ms 17320 KB Output is correct
60 Correct 1 ms 2644 KB Output is correct
61 Correct 521 ms 34004 KB Output is correct
62 Correct 518 ms 33996 KB Output is correct
63 Correct 553 ms 34008 KB Output is correct
64 Correct 572 ms 34008 KB Output is correct
65 Correct 572 ms 33896 KB Output is correct
66 Correct 495 ms 33900 KB Output is correct
67 Correct 538 ms 34004 KB Output is correct
68 Correct 398 ms 24884 KB Output is correct
69 Correct 252 ms 19652 KB Output is correct
70 Correct 2 ms 2608 KB Output is correct