oj.uz

답안 #886766

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
886766 2023-12-12T22:16:46 Z OAleksa Tree Rotations (POI11_rot) C++14
27 / 100
 176 ms 65536 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
 
#define f first
#define s second
#define int long long
const int N = 2e5 + 69;
int n, t = 1, ans;
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update>
ordered_set;
ordered_set st[N];
int napravi() {
	int x;
	cin >> x;
	if (x == 0) {
		int l = napravi();
		int r = napravi();
		if (st[l].size() < st[r].size()) {
			st[l].swap(st[r]);
			swap(l, r);
		}
		int k1 = 0, k2 = 0;
		for (auto u : st[r]) {
			int x = st[l].order_of_key(u + 1);
			k1 += (int)st[l].size() - x;
		}
		//b a
		for (auto u : st[r]) {
			int x = st[l].order_of_key(u + 1);
			k2 += x;
		}
		for (auto u : st[r])
			st[l].insert(u);
		//st[r].clear();
		ans += min(k1, k2);
		return l;
	}
	else {
		st[x].insert(x);
		return x;
	}
}
 
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	//freopen("snowcow.in", "r", stdin);
	//freopen("snowcow.out", "w", stdout);
  int tt = 1;
	//cin >> tt;
  while (tt--) {
  	cin >> n;
  	napravi();
  	cout << ans;
	}
	return 0;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 19036 KB Output is correct
2 Correct 10 ms 19036 KB Output is correct
3 Correct 10 ms 19036 KB Output is correct
4 Correct 10 ms 19036 KB Output is correct
5 Correct 10 ms 19036 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 19036 KB Output is correct
2 Correct 11 ms 19108 KB Output is correct
3 Correct 10 ms 19292 KB Output is correct
4 Correct 13 ms 19292 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 19548 KB Output is correct
2 Correct 16 ms 19636 KB Output is correct
3 Correct 12 ms 19548 KB Output is correct
4 Correct 22 ms 23900 KB Output is correct

Subtask #4
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 118 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 114 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 176 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #7
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 109 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #8
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 115 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 173 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 111 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 111 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -