#include <bits/stdc++.h>
#define ll long long
#define f first
#define s second
#define pb push_back
#define mp make_pair
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<pair<long long,long long>, null_type,less<pair<long long,long long> >, rb_tree_tag,tree_order_statistics_node_update>
ll n,ans,a[300005],k[300005];
int main(){
ordered_set st;
cin >> n;
for(int i=1; i<=n; i++){
cin >> a[i];
k[i] = st.order_of_key(mp(a[i],-1));
st.insert(mp(a[i],i));
}
st.clear();
for(int i=n; i>=1; i--){
k[i] *= st.order_of_key(mp(a[i],-1));
st.insert(mp(a[i],i));
ans += k[i];
}
cout << ans << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
921 ms |
23928 KB |
Output is correct |
3 |
Correct |
913 ms |
23800 KB |
Output is correct |
4 |
Correct |
904 ms |
23800 KB |
Output is correct |
5 |
Correct |
918 ms |
24056 KB |
Output is correct |
6 |
Correct |
904 ms |
24000 KB |
Output is correct |
7 |
Correct |
925 ms |
23800 KB |
Output is correct |
8 |
Correct |
933 ms |
23800 KB |
Output is correct |
9 |
Correct |
922 ms |
24056 KB |
Output is correct |
10 |
Correct |
917 ms |
24072 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
379 ms |
23804 KB |
Output is correct |
2 |
Correct |
383 ms |
23800 KB |
Output is correct |
3 |
Correct |
382 ms |
23820 KB |
Output is correct |
4 |
Correct |
386 ms |
23800 KB |
Output is correct |
5 |
Correct |
383 ms |
23928 KB |
Output is correct |
6 |
Correct |
386 ms |
23928 KB |
Output is correct |
7 |
Correct |
387 ms |
23800 KB |
Output is correct |
8 |
Correct |
537 ms |
23800 KB |
Output is correct |
9 |
Correct |
559 ms |
23800 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
379 ms |
23804 KB |
Output is correct |
2 |
Correct |
383 ms |
23800 KB |
Output is correct |
3 |
Correct |
382 ms |
23820 KB |
Output is correct |
4 |
Correct |
386 ms |
23800 KB |
Output is correct |
5 |
Correct |
383 ms |
23928 KB |
Output is correct |
6 |
Correct |
386 ms |
23928 KB |
Output is correct |
7 |
Correct |
387 ms |
23800 KB |
Output is correct |
8 |
Correct |
537 ms |
23800 KB |
Output is correct |
9 |
Correct |
559 ms |
23800 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
11 |
Correct |
775 ms |
23972 KB |
Output is correct |
12 |
Correct |
722 ms |
23840 KB |
Output is correct |
13 |
Correct |
753 ms |
23800 KB |
Output is correct |
14 |
Correct |
764 ms |
23916 KB |
Output is correct |
15 |
Correct |
756 ms |
24056 KB |
Output is correct |
16 |
Correct |
754 ms |
23800 KB |
Output is correct |
17 |
Correct |
737 ms |
24056 KB |
Output is correct |
18 |
Correct |
583 ms |
23800 KB |
Output is correct |
19 |
Correct |
567 ms |
23928 KB |
Output is correct |
20 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
11 |
Correct |
23 ms |
1152 KB |
Output is correct |
12 |
Correct |
29 ms |
1272 KB |
Output is correct |
13 |
Correct |
23 ms |
1152 KB |
Output is correct |
14 |
Correct |
24 ms |
1152 KB |
Output is correct |
15 |
Correct |
23 ms |
1152 KB |
Output is correct |
16 |
Correct |
23 ms |
1144 KB |
Output is correct |
17 |
Correct |
23 ms |
1152 KB |
Output is correct |
18 |
Correct |
23 ms |
1152 KB |
Output is correct |
19 |
Correct |
14 ms |
1152 KB |
Output is correct |
20 |
Correct |
1 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
379 ms |
23804 KB |
Output is correct |
2 |
Correct |
383 ms |
23800 KB |
Output is correct |
3 |
Correct |
382 ms |
23820 KB |
Output is correct |
4 |
Correct |
386 ms |
23800 KB |
Output is correct |
5 |
Correct |
383 ms |
23928 KB |
Output is correct |
6 |
Correct |
386 ms |
23928 KB |
Output is correct |
7 |
Correct |
387 ms |
23800 KB |
Output is correct |
8 |
Correct |
537 ms |
23800 KB |
Output is correct |
9 |
Correct |
559 ms |
23800 KB |
Output is correct |
10 |
Correct |
0 ms |
384 KB |
Output is correct |
11 |
Correct |
775 ms |
23972 KB |
Output is correct |
12 |
Correct |
722 ms |
23840 KB |
Output is correct |
13 |
Correct |
753 ms |
23800 KB |
Output is correct |
14 |
Correct |
764 ms |
23916 KB |
Output is correct |
15 |
Correct |
756 ms |
24056 KB |
Output is correct |
16 |
Correct |
754 ms |
23800 KB |
Output is correct |
17 |
Correct |
737 ms |
24056 KB |
Output is correct |
18 |
Correct |
583 ms |
23800 KB |
Output is correct |
19 |
Correct |
567 ms |
23928 KB |
Output is correct |
20 |
Correct |
1 ms |
384 KB |
Output is correct |
21 |
Correct |
935 ms |
23848 KB |
Output is correct |
22 |
Correct |
923 ms |
24048 KB |
Output is correct |
23 |
Correct |
936 ms |
24108 KB |
Output is correct |
24 |
Correct |
918 ms |
23852 KB |
Output is correct |
25 |
Correct |
929 ms |
23844 KB |
Output is correct |
26 |
Correct |
925 ms |
23864 KB |
Output is correct |
27 |
Correct |
943 ms |
23900 KB |
Output is correct |
28 |
Correct |
639 ms |
23928 KB |
Output is correct |
29 |
Correct |
646 ms |
23944 KB |
Output is correct |
30 |
Correct |
0 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
921 ms |
23928 KB |
Output is correct |
3 |
Correct |
913 ms |
23800 KB |
Output is correct |
4 |
Correct |
904 ms |
23800 KB |
Output is correct |
5 |
Correct |
918 ms |
24056 KB |
Output is correct |
6 |
Correct |
904 ms |
24000 KB |
Output is correct |
7 |
Correct |
925 ms |
23800 KB |
Output is correct |
8 |
Correct |
933 ms |
23800 KB |
Output is correct |
9 |
Correct |
922 ms |
24056 KB |
Output is correct |
10 |
Correct |
917 ms |
24072 KB |
Output is correct |
11 |
Correct |
379 ms |
23804 KB |
Output is correct |
12 |
Correct |
383 ms |
23800 KB |
Output is correct |
13 |
Correct |
382 ms |
23820 KB |
Output is correct |
14 |
Correct |
386 ms |
23800 KB |
Output is correct |
15 |
Correct |
383 ms |
23928 KB |
Output is correct |
16 |
Correct |
386 ms |
23928 KB |
Output is correct |
17 |
Correct |
387 ms |
23800 KB |
Output is correct |
18 |
Correct |
537 ms |
23800 KB |
Output is correct |
19 |
Correct |
559 ms |
23800 KB |
Output is correct |
20 |
Correct |
0 ms |
384 KB |
Output is correct |
21 |
Correct |
775 ms |
23972 KB |
Output is correct |
22 |
Correct |
722 ms |
23840 KB |
Output is correct |
23 |
Correct |
753 ms |
23800 KB |
Output is correct |
24 |
Correct |
764 ms |
23916 KB |
Output is correct |
25 |
Correct |
756 ms |
24056 KB |
Output is correct |
26 |
Correct |
754 ms |
23800 KB |
Output is correct |
27 |
Correct |
737 ms |
24056 KB |
Output is correct |
28 |
Correct |
583 ms |
23800 KB |
Output is correct |
29 |
Correct |
567 ms |
23928 KB |
Output is correct |
30 |
Correct |
1 ms |
384 KB |
Output is correct |
31 |
Correct |
1 ms |
384 KB |
Output is correct |
32 |
Correct |
2 ms |
384 KB |
Output is correct |
33 |
Correct |
1 ms |
384 KB |
Output is correct |
34 |
Correct |
2 ms |
384 KB |
Output is correct |
35 |
Correct |
1 ms |
384 KB |
Output is correct |
36 |
Correct |
2 ms |
384 KB |
Output is correct |
37 |
Correct |
1 ms |
384 KB |
Output is correct |
38 |
Correct |
2 ms |
384 KB |
Output is correct |
39 |
Correct |
1 ms |
384 KB |
Output is correct |
40 |
Correct |
0 ms |
384 KB |
Output is correct |
41 |
Correct |
23 ms |
1152 KB |
Output is correct |
42 |
Correct |
29 ms |
1272 KB |
Output is correct |
43 |
Correct |
23 ms |
1152 KB |
Output is correct |
44 |
Correct |
24 ms |
1152 KB |
Output is correct |
45 |
Correct |
23 ms |
1152 KB |
Output is correct |
46 |
Correct |
23 ms |
1144 KB |
Output is correct |
47 |
Correct |
23 ms |
1152 KB |
Output is correct |
48 |
Correct |
23 ms |
1152 KB |
Output is correct |
49 |
Correct |
14 ms |
1152 KB |
Output is correct |
50 |
Correct |
1 ms |
384 KB |
Output is correct |
51 |
Correct |
935 ms |
23848 KB |
Output is correct |
52 |
Correct |
923 ms |
24048 KB |
Output is correct |
53 |
Correct |
936 ms |
24108 KB |
Output is correct |
54 |
Correct |
918 ms |
23852 KB |
Output is correct |
55 |
Correct |
929 ms |
23844 KB |
Output is correct |
56 |
Correct |
925 ms |
23864 KB |
Output is correct |
57 |
Correct |
943 ms |
23900 KB |
Output is correct |
58 |
Correct |
639 ms |
23928 KB |
Output is correct |
59 |
Correct |
646 ms |
23944 KB |
Output is correct |
60 |
Correct |
0 ms |
384 KB |
Output is correct |
61 |
Correct |
1168 ms |
23952 KB |
Output is correct |
62 |
Correct |
1173 ms |
24008 KB |
Output is correct |
63 |
Correct |
1180 ms |
23928 KB |
Output is correct |
64 |
Correct |
1177 ms |
23804 KB |
Output is correct |
65 |
Correct |
1213 ms |
23960 KB |
Output is correct |
66 |
Correct |
1173 ms |
24184 KB |
Output is correct |
67 |
Correct |
1205 ms |
24020 KB |
Output is correct |
68 |
Correct |
1210 ms |
23800 KB |
Output is correct |
69 |
Correct |
948 ms |
23928 KB |
Output is correct |
70 |
Correct |
0 ms |
384 KB |
Output is correct |