#include<bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define mp make_pair
#define all(v) (v).begin(), (v).end()
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;
int n;
int d[200010];
int p[200010];
vector<int> g[200010];
priority_queue<int> pQ;
int tree[200010];
void update(int i) {
while(i <= n) {
tree[i]++;
i += i & -i;
}
}
int sum(int i) {
int ret = 0;
while(i) {
ret += tree[i];
i -= i & -i;
}
return ret;
}
int main() {
fast;
cin >> n;
for(int i=1; i<=n; i++) {
cin >> d[i];
g[d[i]].eb(i);
}
for(int i=n; i>=1; i--) {
for(auto j : g[i]) {
pQ.em(j);
}
if(pQ.empty()) {
cout << -1;
return 0;
}
p[i] = pQ.top();
pQ.pop();
}
ll ans = 0;
for(int i=1; i<=n; i++) {
update(p[i]);
ans += i - sum(p[i]);
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
5248 KB |
Output is correct |
2 |
Correct |
5 ms |
5248 KB |
Output is correct |
3 |
Correct |
6 ms |
5248 KB |
Output is correct |
4 |
Correct |
5 ms |
5248 KB |
Output is correct |
5 |
Correct |
5 ms |
5248 KB |
Output is correct |
6 |
Correct |
6 ms |
5248 KB |
Output is correct |
7 |
Correct |
5 ms |
5248 KB |
Output is correct |
8 |
Correct |
6 ms |
5248 KB |
Output is correct |
9 |
Correct |
5 ms |
5248 KB |
Output is correct |
10 |
Correct |
5 ms |
5248 KB |
Output is correct |
11 |
Correct |
6 ms |
5248 KB |
Output is correct |
12 |
Correct |
6 ms |
5248 KB |
Output is correct |
13 |
Correct |
7 ms |
5220 KB |
Output is correct |
14 |
Correct |
6 ms |
5248 KB |
Output is correct |
15 |
Correct |
6 ms |
5248 KB |
Output is correct |
16 |
Correct |
7 ms |
5248 KB |
Output is correct |
17 |
Correct |
5 ms |
5248 KB |
Output is correct |
18 |
Correct |
5 ms |
5248 KB |
Output is correct |
19 |
Correct |
5 ms |
5248 KB |
Output is correct |
20 |
Correct |
5 ms |
5248 KB |
Output is correct |
21 |
Correct |
5 ms |
5248 KB |
Output is correct |
22 |
Correct |
6 ms |
5280 KB |
Output is correct |
23 |
Correct |
6 ms |
5248 KB |
Output is correct |
24 |
Correct |
6 ms |
5248 KB |
Output is correct |
25 |
Correct |
5 ms |
5248 KB |
Output is correct |
26 |
Correct |
5 ms |
5248 KB |
Output is correct |
27 |
Correct |
6 ms |
5248 KB |
Output is correct |
28 |
Correct |
7 ms |
5248 KB |
Output is correct |
29 |
Correct |
8 ms |
5248 KB |
Output is correct |
30 |
Correct |
6 ms |
5248 KB |
Output is correct |
31 |
Correct |
6 ms |
5120 KB |
Output is correct |
32 |
Correct |
6 ms |
5248 KB |
Output is correct |
33 |
Correct |
6 ms |
5248 KB |
Output is correct |
34 |
Correct |
9 ms |
5248 KB |
Output is correct |
35 |
Correct |
5 ms |
5120 KB |
Output is correct |
36 |
Correct |
5 ms |
5248 KB |
Output is correct |
37 |
Correct |
4 ms |
5248 KB |
Output is correct |
38 |
Correct |
5 ms |
5248 KB |
Output is correct |
39 |
Correct |
5 ms |
5248 KB |
Output is correct |
40 |
Correct |
5 ms |
5248 KB |
Output is correct |
41 |
Correct |
5 ms |
5248 KB |
Output is correct |
42 |
Correct |
7 ms |
5248 KB |
Output is correct |
43 |
Correct |
6 ms |
5120 KB |
Output is correct |
44 |
Correct |
6 ms |
4992 KB |
Output is correct |
45 |
Correct |
4 ms |
4992 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
5248 KB |
Output is correct |
2 |
Correct |
5 ms |
5248 KB |
Output is correct |
3 |
Correct |
6 ms |
5248 KB |
Output is correct |
4 |
Correct |
5 ms |
5248 KB |
Output is correct |
5 |
Correct |
5 ms |
5248 KB |
Output is correct |
6 |
Correct |
6 ms |
5248 KB |
Output is correct |
7 |
Correct |
5 ms |
5248 KB |
Output is correct |
8 |
Correct |
6 ms |
5248 KB |
Output is correct |
9 |
Correct |
5 ms |
5248 KB |
Output is correct |
10 |
Correct |
5 ms |
5248 KB |
Output is correct |
11 |
Correct |
6 ms |
5248 KB |
Output is correct |
12 |
Correct |
6 ms |
5248 KB |
Output is correct |
13 |
Correct |
7 ms |
5220 KB |
Output is correct |
14 |
Correct |
6 ms |
5248 KB |
Output is correct |
15 |
Correct |
6 ms |
5248 KB |
Output is correct |
16 |
Correct |
7 ms |
5248 KB |
Output is correct |
17 |
Correct |
5 ms |
5248 KB |
Output is correct |
18 |
Correct |
5 ms |
5248 KB |
Output is correct |
19 |
Correct |
5 ms |
5248 KB |
Output is correct |
20 |
Correct |
5 ms |
5248 KB |
Output is correct |
21 |
Correct |
5 ms |
5248 KB |
Output is correct |
22 |
Correct |
6 ms |
5280 KB |
Output is correct |
23 |
Correct |
6 ms |
5248 KB |
Output is correct |
24 |
Correct |
6 ms |
5248 KB |
Output is correct |
25 |
Correct |
5 ms |
5248 KB |
Output is correct |
26 |
Correct |
5 ms |
5248 KB |
Output is correct |
27 |
Correct |
6 ms |
5248 KB |
Output is correct |
28 |
Correct |
7 ms |
5248 KB |
Output is correct |
29 |
Correct |
8 ms |
5248 KB |
Output is correct |
30 |
Correct |
6 ms |
5248 KB |
Output is correct |
31 |
Correct |
6 ms |
5120 KB |
Output is correct |
32 |
Correct |
6 ms |
5248 KB |
Output is correct |
33 |
Correct |
6 ms |
5248 KB |
Output is correct |
34 |
Correct |
9 ms |
5248 KB |
Output is correct |
35 |
Correct |
5 ms |
5120 KB |
Output is correct |
36 |
Correct |
5 ms |
5248 KB |
Output is correct |
37 |
Correct |
4 ms |
5248 KB |
Output is correct |
38 |
Correct |
5 ms |
5248 KB |
Output is correct |
39 |
Correct |
5 ms |
5248 KB |
Output is correct |
40 |
Correct |
5 ms |
5248 KB |
Output is correct |
41 |
Correct |
5 ms |
5248 KB |
Output is correct |
42 |
Correct |
7 ms |
5248 KB |
Output is correct |
43 |
Correct |
6 ms |
5120 KB |
Output is correct |
44 |
Correct |
6 ms |
4992 KB |
Output is correct |
45 |
Correct |
4 ms |
4992 KB |
Output is correct |
46 |
Correct |
131 ms |
11000 KB |
Output is correct |
47 |
Correct |
111 ms |
10992 KB |
Output is correct |
48 |
Correct |
96 ms |
10992 KB |
Output is correct |
49 |
Correct |
91 ms |
11120 KB |
Output is correct |
50 |
Correct |
102 ms |
10992 KB |
Output is correct |
51 |
Correct |
105 ms |
10988 KB |
Output is correct |
52 |
Correct |
112 ms |
13688 KB |
Output is correct |
53 |
Correct |
86 ms |
13688 KB |
Output is correct |
54 |
Correct |
69 ms |
13688 KB |
Output is correct |
55 |
Correct |
49 ms |
13592 KB |
Output is correct |
56 |
Correct |
70 ms |
13552 KB |
Output is correct |
57 |
Correct |
67 ms |
13676 KB |
Output is correct |
58 |
Correct |
110 ms |
11512 KB |
Output is correct |
59 |
Correct |
107 ms |
11512 KB |
Output is correct |
60 |
Correct |
103 ms |
11512 KB |
Output is correct |
61 |
Correct |
81 ms |
11512 KB |
Output is correct |
62 |
Correct |
54 ms |
11384 KB |
Output is correct |
63 |
Correct |
72 ms |
11512 KB |
Output is correct |
64 |
Correct |
101 ms |
11404 KB |
Output is correct |
65 |
Correct |
81 ms |
11384 KB |
Output is correct |
66 |
Correct |
93 ms |
11416 KB |
Output is correct |
67 |
Correct |
70 ms |
11384 KB |
Output is correct |
68 |
Correct |
95 ms |
11384 KB |
Output is correct |
69 |
Correct |
119 ms |
11412 KB |
Output is correct |
70 |
Correct |
120 ms |
11280 KB |
Output is correct |
71 |
Correct |
96 ms |
11256 KB |
Output is correct |
72 |
Correct |
83 ms |
11256 KB |
Output is correct |
73 |
Correct |
87 ms |
11252 KB |
Output is correct |
74 |
Correct |
69 ms |
11256 KB |
Output is correct |
75 |
Correct |
82 ms |
11256 KB |
Output is correct |
76 |
Correct |
71 ms |
9508 KB |
Output is correct |
77 |
Correct |
56 ms |
9212 KB |
Output is correct |
78 |
Correct |
46 ms |
13664 KB |
Output is correct |
79 |
Correct |
51 ms |
11512 KB |
Output is correct |
80 |
Correct |
66 ms |
9716 KB |
Output is correct |
81 |
Correct |
61 ms |
9452 KB |
Output is correct |
82 |
Correct |
46 ms |
13688 KB |
Output is correct |
83 |
Correct |
57 ms |
11440 KB |
Output is correct |
84 |
Correct |
106 ms |
11256 KB |
Output is correct |
85 |
Correct |
118 ms |
11256 KB |
Output is correct |
86 |
Correct |
111 ms |
11256 KB |
Output is correct |
87 |
Correct |
72 ms |
9464 KB |
Output is correct |
88 |
Correct |
115 ms |
11384 KB |
Output is correct |