답안 #795596

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
795596	2023-07-27T11:34:29 Z	stefanneagu	Mountains (NOI20_mountains)	C++17	100 / 100	572 ms	34064 KB

Mountains

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #795596

Compilation message

Subtask #1 2.0 / 2.0

Subtask #2 4.0 / 4.0

Subtask #3 9.0 / 9.0

Subtask #4 36.0 / 36.0

Subtask #5 28.0 / 28.0

Subtask #6 9.0 / 9.0

Subtask #7 12.0 / 12.0

Subtask #1
2.0 / 2.0

Subtask #2
4.0 / 4.0

Subtask #3
9.0 / 9.0

Subtask #4
36.0 / 36.0

Subtask #5
28.0 / 28.0

Subtask #6
9.0 / 9.0

Subtask #7
12.0 / 12.0