#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define int long long
using vi = vector<int>;
using vs = vector<string>;
using vb = vector<bool>;
using vvi = vector<vector<int>>;
using pii = pair<int, int>;
using vpii = vector<pair<int, int>>;
using si = set<int>;
using mii = map<int, int>;
template<typename T> using pbds = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define sz(x) (int)size(x)
#define pb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define fr first
#define sc second
#define f(i, end) for (int i = 0; i < end; i++)
#define ff(i, start, end) for (int i = start; i < end; i++)
template<typename T, typename U> inline void domin(T &x, U y) {if (y < x) x = y;}
template<typename T, typename U> inline void domax(T &x, U y) {if (y > x) x = y;}
template<typename T, typename U> ostream& operator<<(ostream &os, const pair<T, U> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template < typename T_container, typename T = typename enable_if < !is_same<T_container, string>::value, typename T_container::value_type >::type > ostream & operator<<(ostream &os, const T_container &a) { os << '{'; string sep; for (const T &x : a) os << sep << x, sep = ", "; return os << '}';}
void debug() {cerr << endl;}
template <typename Head, typename... Tail> void debug(Head h, Tail... t) {cerr << h << ' '; debug(t...);}
#ifdef singlabharat
#define debug(...) cerr << "(" << #__VA_ARGS__ << ") : ", debug(__VA_ARGS__)
#else
#define debug(...)
#endif
#define endl '\n'
const int MX = 2e5 + 2, INF = 1e18;
void solve() {
int n;
cin >> n;
vi a(n);
f(i, n) cin >> a[i];
int ans = 0;
pbds<pii> osl, osr;
f(i, n) osr.insert({a[i], i});
debug(osl, osr);
f(i, n) {
osr.erase({a[i], i});
ans += osl.order_of_key({a[i], 0}) * osr.order_of_key({a[i], 0});
osl.insert({a[i], i});
}
cout << ans;
}
int32_t main() {
#ifdef singlabharat
freopen("error.txt", "w", stderr);
#endif
cin.tie(0)->sync_with_stdio(0);
int t = 1;
// cin >> t;
for (int tc = 0; tc < t; tc++) solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
568 ms |
26972 KB |
Output is correct |
3 |
Correct |
565 ms |
26984 KB |
Output is correct |
4 |
Correct |
631 ms |
26888 KB |
Output is correct |
5 |
Correct |
601 ms |
27084 KB |
Output is correct |
6 |
Correct |
598 ms |
26996 KB |
Output is correct |
7 |
Correct |
766 ms |
26980 KB |
Output is correct |
8 |
Correct |
667 ms |
26928 KB |
Output is correct |
9 |
Correct |
589 ms |
27020 KB |
Output is correct |
10 |
Correct |
534 ms |
27044 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
326 ms |
21964 KB |
Output is correct |
2 |
Correct |
369 ms |
21948 KB |
Output is correct |
3 |
Correct |
314 ms |
21964 KB |
Output is correct |
4 |
Correct |
327 ms |
21948 KB |
Output is correct |
5 |
Correct |
383 ms |
22000 KB |
Output is correct |
6 |
Correct |
327 ms |
21936 KB |
Output is correct |
7 |
Correct |
350 ms |
22036 KB |
Output is correct |
8 |
Correct |
550 ms |
22060 KB |
Output is correct |
9 |
Correct |
525 ms |
22040 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
326 ms |
21964 KB |
Output is correct |
2 |
Correct |
369 ms |
21948 KB |
Output is correct |
3 |
Correct |
314 ms |
21964 KB |
Output is correct |
4 |
Correct |
327 ms |
21948 KB |
Output is correct |
5 |
Correct |
383 ms |
22000 KB |
Output is correct |
6 |
Correct |
327 ms |
21936 KB |
Output is correct |
7 |
Correct |
350 ms |
22036 KB |
Output is correct |
8 |
Correct |
550 ms |
22060 KB |
Output is correct |
9 |
Correct |
525 ms |
22040 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
686 ms |
22232 KB |
Output is correct |
12 |
Correct |
698 ms |
22300 KB |
Output is correct |
13 |
Correct |
668 ms |
22240 KB |
Output is correct |
14 |
Correct |
696 ms |
22200 KB |
Output is correct |
15 |
Correct |
720 ms |
22204 KB |
Output is correct |
16 |
Correct |
704 ms |
22252 KB |
Output is correct |
17 |
Correct |
762 ms |
22268 KB |
Output is correct |
18 |
Correct |
549 ms |
22212 KB |
Output is correct |
19 |
Correct |
548 ms |
22268 KB |
Output is correct |
20 |
Correct |
1 ms |
328 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
328 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
328 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
328 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
328 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
324 KB |
Output is correct |
11 |
Correct |
13 ms |
1260 KB |
Output is correct |
12 |
Correct |
11 ms |
1152 KB |
Output is correct |
13 |
Correct |
13 ms |
1100 KB |
Output is correct |
14 |
Correct |
12 ms |
1104 KB |
Output is correct |
15 |
Correct |
12 ms |
1108 KB |
Output is correct |
16 |
Correct |
11 ms |
1104 KB |
Output is correct |
17 |
Correct |
11 ms |
1108 KB |
Output is correct |
18 |
Correct |
12 ms |
1216 KB |
Output is correct |
19 |
Correct |
14 ms |
1076 KB |
Output is correct |
20 |
Correct |
1 ms |
324 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
326 ms |
21964 KB |
Output is correct |
2 |
Correct |
369 ms |
21948 KB |
Output is correct |
3 |
Correct |
314 ms |
21964 KB |
Output is correct |
4 |
Correct |
327 ms |
21948 KB |
Output is correct |
5 |
Correct |
383 ms |
22000 KB |
Output is correct |
6 |
Correct |
327 ms |
21936 KB |
Output is correct |
7 |
Correct |
350 ms |
22036 KB |
Output is correct |
8 |
Correct |
550 ms |
22060 KB |
Output is correct |
9 |
Correct |
525 ms |
22040 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
686 ms |
22232 KB |
Output is correct |
12 |
Correct |
698 ms |
22300 KB |
Output is correct |
13 |
Correct |
668 ms |
22240 KB |
Output is correct |
14 |
Correct |
696 ms |
22200 KB |
Output is correct |
15 |
Correct |
720 ms |
22204 KB |
Output is correct |
16 |
Correct |
704 ms |
22252 KB |
Output is correct |
17 |
Correct |
762 ms |
22268 KB |
Output is correct |
18 |
Correct |
549 ms |
22212 KB |
Output is correct |
19 |
Correct |
548 ms |
22268 KB |
Output is correct |
20 |
Correct |
1 ms |
328 KB |
Output is correct |
21 |
Correct |
970 ms |
23204 KB |
Output is correct |
22 |
Correct |
978 ms |
23084 KB |
Output is correct |
23 |
Correct |
967 ms |
23092 KB |
Output is correct |
24 |
Correct |
1041 ms |
23140 KB |
Output is correct |
25 |
Correct |
958 ms |
23156 KB |
Output is correct |
26 |
Correct |
981 ms |
23176 KB |
Output is correct |
27 |
Correct |
894 ms |
23076 KB |
Output is correct |
28 |
Correct |
525 ms |
23116 KB |
Output is correct |
29 |
Correct |
540 ms |
23164 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
568 ms |
26972 KB |
Output is correct |
3 |
Correct |
565 ms |
26984 KB |
Output is correct |
4 |
Correct |
631 ms |
26888 KB |
Output is correct |
5 |
Correct |
601 ms |
27084 KB |
Output is correct |
6 |
Correct |
598 ms |
26996 KB |
Output is correct |
7 |
Correct |
766 ms |
26980 KB |
Output is correct |
8 |
Correct |
667 ms |
26928 KB |
Output is correct |
9 |
Correct |
589 ms |
27020 KB |
Output is correct |
10 |
Correct |
534 ms |
27044 KB |
Output is correct |
11 |
Correct |
326 ms |
21964 KB |
Output is correct |
12 |
Correct |
369 ms |
21948 KB |
Output is correct |
13 |
Correct |
314 ms |
21964 KB |
Output is correct |
14 |
Correct |
327 ms |
21948 KB |
Output is correct |
15 |
Correct |
383 ms |
22000 KB |
Output is correct |
16 |
Correct |
327 ms |
21936 KB |
Output is correct |
17 |
Correct |
350 ms |
22036 KB |
Output is correct |
18 |
Correct |
550 ms |
22060 KB |
Output is correct |
19 |
Correct |
525 ms |
22040 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
686 ms |
22232 KB |
Output is correct |
22 |
Correct |
698 ms |
22300 KB |
Output is correct |
23 |
Correct |
668 ms |
22240 KB |
Output is correct |
24 |
Correct |
696 ms |
22200 KB |
Output is correct |
25 |
Correct |
720 ms |
22204 KB |
Output is correct |
26 |
Correct |
704 ms |
22252 KB |
Output is correct |
27 |
Correct |
762 ms |
22268 KB |
Output is correct |
28 |
Correct |
549 ms |
22212 KB |
Output is correct |
29 |
Correct |
548 ms |
22268 KB |
Output is correct |
30 |
Correct |
1 ms |
328 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
328 KB |
Output is correct |
34 |
Correct |
1 ms |
332 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
328 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
324 KB |
Output is correct |
41 |
Correct |
13 ms |
1260 KB |
Output is correct |
42 |
Correct |
11 ms |
1152 KB |
Output is correct |
43 |
Correct |
13 ms |
1100 KB |
Output is correct |
44 |
Correct |
12 ms |
1104 KB |
Output is correct |
45 |
Correct |
12 ms |
1108 KB |
Output is correct |
46 |
Correct |
11 ms |
1104 KB |
Output is correct |
47 |
Correct |
11 ms |
1108 KB |
Output is correct |
48 |
Correct |
12 ms |
1216 KB |
Output is correct |
49 |
Correct |
14 ms |
1076 KB |
Output is correct |
50 |
Correct |
1 ms |
324 KB |
Output is correct |
51 |
Correct |
970 ms |
23204 KB |
Output is correct |
52 |
Correct |
978 ms |
23084 KB |
Output is correct |
53 |
Correct |
967 ms |
23092 KB |
Output is correct |
54 |
Correct |
1041 ms |
23140 KB |
Output is correct |
55 |
Correct |
958 ms |
23156 KB |
Output is correct |
56 |
Correct |
981 ms |
23176 KB |
Output is correct |
57 |
Correct |
894 ms |
23076 KB |
Output is correct |
58 |
Correct |
525 ms |
23116 KB |
Output is correct |
59 |
Correct |
540 ms |
23164 KB |
Output is correct |
60 |
Correct |
0 ms |
212 KB |
Output is correct |
61 |
Correct |
902 ms |
26896 KB |
Output is correct |
62 |
Correct |
859 ms |
27044 KB |
Output is correct |
63 |
Correct |
891 ms |
26872 KB |
Output is correct |
64 |
Correct |
908 ms |
26980 KB |
Output is correct |
65 |
Correct |
842 ms |
26916 KB |
Output is correct |
66 |
Correct |
920 ms |
27080 KB |
Output is correct |
67 |
Correct |
895 ms |
27060 KB |
Output is correct |
68 |
Correct |
891 ms |
27004 KB |
Output is correct |
69 |
Correct |
903 ms |
23184 KB |
Output is correct |
70 |
Correct |
1 ms |
212 KB |
Output is correct |