#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define F0R(i, a) for (int i=0; i<(a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 100001;
int N, p[MX],A[MX];
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> N;
FOR(i,1,N+1) cin >> A[i];
F0R(i,N-1) {
int x,y; cin >> x >> y;
p[y] = x;
Tree<pi> T;
ll ans = 0;
while (x) {
ans += T.order_of_key({A[x],-MOD});
T.insert({A[x],x});
A[x] = A[y];
x = p[x];
}
cout << ans << "\n";
}
}
/* Look for:
* the exact constraints (multiple sets are too slow for n=10^6 :( )
* special cases (n=1?)
* overflow (ll vs int?)
* array bounds
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
496 KB |
Output is correct |
3 |
Correct |
3 ms |
496 KB |
Output is correct |
4 |
Correct |
3 ms |
496 KB |
Output is correct |
5 |
Correct |
4 ms |
640 KB |
Output is correct |
6 |
Correct |
4 ms |
680 KB |
Output is correct |
7 |
Correct |
3 ms |
680 KB |
Output is correct |
8 |
Correct |
26 ms |
708 KB |
Output is correct |
9 |
Correct |
28 ms |
740 KB |
Output is correct |
10 |
Correct |
26 ms |
816 KB |
Output is correct |
11 |
Correct |
14 ms |
816 KB |
Output is correct |
12 |
Correct |
15 ms |
816 KB |
Output is correct |
13 |
Correct |
13 ms |
896 KB |
Output is correct |
14 |
Correct |
16 ms |
896 KB |
Output is correct |
15 |
Correct |
4 ms |
896 KB |
Output is correct |
16 |
Correct |
4 ms |
896 KB |
Output is correct |
17 |
Correct |
3 ms |
936 KB |
Output is correct |
18 |
Correct |
4 ms |
936 KB |
Output is correct |
19 |
Correct |
16 ms |
964 KB |
Output is correct |
20 |
Correct |
15 ms |
992 KB |
Output is correct |
21 |
Correct |
15 ms |
992 KB |
Output is correct |
22 |
Correct |
3 ms |
1000 KB |
Output is correct |
23 |
Correct |
3 ms |
1012 KB |
Output is correct |
24 |
Correct |
5 ms |
1020 KB |
Output is correct |
25 |
Correct |
4 ms |
1028 KB |
Output is correct |
26 |
Correct |
28 ms |
1164 KB |
Output is correct |
27 |
Correct |
14 ms |
1164 KB |
Output is correct |
28 |
Correct |
14 ms |
1164 KB |
Output is correct |
29 |
Correct |
13 ms |
1164 KB |
Output is correct |
30 |
Correct |
3 ms |
1164 KB |
Output is correct |
31 |
Correct |
4 ms |
1164 KB |
Output is correct |
32 |
Correct |
16 ms |
1164 KB |
Output is correct |
33 |
Correct |
9 ms |
1164 KB |
Output is correct |
34 |
Correct |
7 ms |
1164 KB |
Output is correct |
35 |
Correct |
5 ms |
1164 KB |
Output is correct |
36 |
Correct |
8 ms |
1164 KB |
Output is correct |
37 |
Correct |
6 ms |
1164 KB |
Output is correct |
38 |
Correct |
5 ms |
1164 KB |
Output is correct |
39 |
Correct |
8 ms |
1164 KB |
Output is correct |
40 |
Correct |
6 ms |
1164 KB |
Output is correct |
41 |
Correct |
6 ms |
1164 KB |
Output is correct |
42 |
Correct |
8 ms |
1180 KB |
Output is correct |
43 |
Correct |
6 ms |
1280 KB |
Output is correct |
44 |
Correct |
5 ms |
1280 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
496 KB |
Output is correct |
3 |
Correct |
3 ms |
496 KB |
Output is correct |
4 |
Correct |
3 ms |
496 KB |
Output is correct |
5 |
Correct |
4 ms |
640 KB |
Output is correct |
6 |
Correct |
4 ms |
680 KB |
Output is correct |
7 |
Correct |
3 ms |
680 KB |
Output is correct |
8 |
Correct |
26 ms |
708 KB |
Output is correct |
9 |
Correct |
28 ms |
740 KB |
Output is correct |
10 |
Correct |
26 ms |
816 KB |
Output is correct |
11 |
Correct |
14 ms |
816 KB |
Output is correct |
12 |
Correct |
15 ms |
816 KB |
Output is correct |
13 |
Correct |
13 ms |
896 KB |
Output is correct |
14 |
Correct |
16 ms |
896 KB |
Output is correct |
15 |
Correct |
4 ms |
896 KB |
Output is correct |
16 |
Correct |
4 ms |
896 KB |
Output is correct |
17 |
Correct |
3 ms |
936 KB |
Output is correct |
18 |
Correct |
4 ms |
936 KB |
Output is correct |
19 |
Correct |
16 ms |
964 KB |
Output is correct |
20 |
Correct |
15 ms |
992 KB |
Output is correct |
21 |
Correct |
15 ms |
992 KB |
Output is correct |
22 |
Correct |
3 ms |
1000 KB |
Output is correct |
23 |
Correct |
3 ms |
1012 KB |
Output is correct |
24 |
Correct |
5 ms |
1020 KB |
Output is correct |
25 |
Correct |
4 ms |
1028 KB |
Output is correct |
26 |
Correct |
28 ms |
1164 KB |
Output is correct |
27 |
Correct |
14 ms |
1164 KB |
Output is correct |
28 |
Correct |
14 ms |
1164 KB |
Output is correct |
29 |
Correct |
13 ms |
1164 KB |
Output is correct |
30 |
Correct |
3 ms |
1164 KB |
Output is correct |
31 |
Correct |
4 ms |
1164 KB |
Output is correct |
32 |
Correct |
16 ms |
1164 KB |
Output is correct |
33 |
Correct |
9 ms |
1164 KB |
Output is correct |
34 |
Correct |
7 ms |
1164 KB |
Output is correct |
35 |
Correct |
5 ms |
1164 KB |
Output is correct |
36 |
Correct |
8 ms |
1164 KB |
Output is correct |
37 |
Correct |
6 ms |
1164 KB |
Output is correct |
38 |
Correct |
5 ms |
1164 KB |
Output is correct |
39 |
Correct |
8 ms |
1164 KB |
Output is correct |
40 |
Correct |
6 ms |
1164 KB |
Output is correct |
41 |
Correct |
6 ms |
1164 KB |
Output is correct |
42 |
Correct |
8 ms |
1180 KB |
Output is correct |
43 |
Correct |
6 ms |
1280 KB |
Output is correct |
44 |
Correct |
5 ms |
1280 KB |
Output is correct |
45 |
Correct |
4 ms |
1280 KB |
Output is correct |
46 |
Correct |
8 ms |
1352 KB |
Output is correct |
47 |
Correct |
10 ms |
1428 KB |
Output is correct |
48 |
Correct |
9 ms |
1620 KB |
Output is correct |
49 |
Execution timed out |
2045 ms |
2000 KB |
Time limit exceeded |
50 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
496 KB |
Output is correct |
3 |
Correct |
3 ms |
496 KB |
Output is correct |
4 |
Correct |
3 ms |
496 KB |
Output is correct |
5 |
Correct |
4 ms |
640 KB |
Output is correct |
6 |
Correct |
4 ms |
680 KB |
Output is correct |
7 |
Correct |
3 ms |
680 KB |
Output is correct |
8 |
Correct |
26 ms |
708 KB |
Output is correct |
9 |
Correct |
28 ms |
740 KB |
Output is correct |
10 |
Correct |
26 ms |
816 KB |
Output is correct |
11 |
Correct |
14 ms |
816 KB |
Output is correct |
12 |
Correct |
15 ms |
816 KB |
Output is correct |
13 |
Correct |
13 ms |
896 KB |
Output is correct |
14 |
Correct |
16 ms |
896 KB |
Output is correct |
15 |
Correct |
4 ms |
896 KB |
Output is correct |
16 |
Correct |
4 ms |
896 KB |
Output is correct |
17 |
Correct |
3 ms |
936 KB |
Output is correct |
18 |
Correct |
4 ms |
936 KB |
Output is correct |
19 |
Correct |
16 ms |
964 KB |
Output is correct |
20 |
Correct |
15 ms |
992 KB |
Output is correct |
21 |
Correct |
15 ms |
992 KB |
Output is correct |
22 |
Correct |
3 ms |
1000 KB |
Output is correct |
23 |
Correct |
3 ms |
1012 KB |
Output is correct |
24 |
Correct |
5 ms |
1020 KB |
Output is correct |
25 |
Correct |
4 ms |
1028 KB |
Output is correct |
26 |
Correct |
28 ms |
1164 KB |
Output is correct |
27 |
Correct |
14 ms |
1164 KB |
Output is correct |
28 |
Correct |
14 ms |
1164 KB |
Output is correct |
29 |
Correct |
13 ms |
1164 KB |
Output is correct |
30 |
Correct |
3 ms |
1164 KB |
Output is correct |
31 |
Correct |
4 ms |
1164 KB |
Output is correct |
32 |
Correct |
16 ms |
1164 KB |
Output is correct |
33 |
Correct |
9 ms |
1164 KB |
Output is correct |
34 |
Correct |
7 ms |
1164 KB |
Output is correct |
35 |
Correct |
5 ms |
1164 KB |
Output is correct |
36 |
Correct |
8 ms |
1164 KB |
Output is correct |
37 |
Correct |
6 ms |
1164 KB |
Output is correct |
38 |
Correct |
5 ms |
1164 KB |
Output is correct |
39 |
Correct |
8 ms |
1164 KB |
Output is correct |
40 |
Correct |
6 ms |
1164 KB |
Output is correct |
41 |
Correct |
6 ms |
1164 KB |
Output is correct |
42 |
Correct |
8 ms |
1180 KB |
Output is correct |
43 |
Correct |
6 ms |
1280 KB |
Output is correct |
44 |
Correct |
5 ms |
1280 KB |
Output is correct |
45 |
Correct |
4 ms |
1280 KB |
Output is correct |
46 |
Correct |
8 ms |
1352 KB |
Output is correct |
47 |
Correct |
10 ms |
1428 KB |
Output is correct |
48 |
Correct |
9 ms |
1620 KB |
Output is correct |
49 |
Execution timed out |
2045 ms |
2000 KB |
Time limit exceeded |
50 |
Halted |
0 ms |
0 KB |
- |