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답안 #931061

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
931061 2024-02-21T07:23:53 Z vjudge1 Tree Rotations (POI11_rot) C++17
100 / 100
 731 ms 29260 KB 
//gm  --- akezhon
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define int long long
#define pb push_back
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NET r < tl || tr < l
#define double long double
using namespace std;
const int N=6e5+7;
const int inf=1e9;
int c[N], sz[N], t[N*4], l[N], r[N], szz, a, b;
int n, timer, ans;
void tupd(int pos, int val, int v=1, int tl=1, int tr=n){
	if(tl == tr){
		t[v] = val;
		return;
	}
	if(pos <= tm)tupd(pos, val, TL);
	else tupd(pos, val, TR);
	t[v] = t[v+v] + t[v+v+1];
}
int get(int l, int r, int v=1, int tl=1, int tr=n){
	if(NET)return 0;
	if(DA)return t[v];
	return get(l, r, TL) + get(l, r, TR);
}
void calc(int v){
	if(c[v]){
		a += get(1, c[v]-1);
		b += get(c[v]+1, n);
	}else{
		calc(l[v]);
		calc(r[v]);
	}
}
void add(int v, int x){
	if(c[v]){
		tupd(c[v], x);
	}else{
		add(l[v], x);
		add(r[v], x);
	}
}
void go(int v=1, int cl=0){
	if(c[v]){
		if(cl==0)tupd(c[v], 1);
		return;
	}
	if(sz[l[v]] > sz[r[v]]){
		swap(l[v], r[v]);
	}
	go(l[v], 1);
	go(r[v], 0);
	
	a=0, b=0;
	calc(l[v]);
	ans += min(a, b);
	
	if(cl)add(r[v], 0);
	else add(l[v], 1);
}
void rec(){
	cin >> c[szz];
	if(c[szz]){
		sz[szz] = 1;
	}
	else{
		int v = szz;
		
		l[v] = ++szz;
		rec();
		r[v] = ++szz;
		rec();
		
		sz[v] = sz[l[v]]+sz[r[v]];
	}
}
void AlemAmenov(){
	
	cin >> n;
	szz=1;
	rec();
	go();
	cout << ans;

}
signed main(){

	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	// freopen("promote.in", "r", stdin);
	// freopen("promote.out", "w", stdout);
	int RealName=1;
	// cin >> RealName;
	// int C=0;
	while(RealName--){
		// cout << "Case " << ++C << ":\n";
		AlemAmenov();
	}

return 0;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8792 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 2 ms 8588 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 1 ms 8536 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct

Subtask #4
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 8792 KB Output is correct
2 Correct 7 ms 8540 KB Output is correct
3 Correct 3 ms 8660 KB Output is correct
4 Correct 3 ms 8796 KB Output is correct

Subtask #5
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 11368 KB Output is correct
2 Correct 25 ms 12892 KB Output is correct
3 Correct 75 ms 12892 KB Output is correct
4 Correct 15 ms 13144 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 130 ms 14936 KB Output is correct
2 Correct 59 ms 15708 KB Output is correct
3 Correct 69 ms 16544 KB Output is correct
4 Correct 64 ms 16212 KB Output is correct

Subtask #7
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 19548 KB Output is correct
2 Correct 83 ms 17880 KB Output is correct
3 Correct 130 ms 17964 KB Output is correct
4 Correct 83 ms 17244 KB Output is correct

Subtask #8
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 137 ms 19168 KB Output is correct
2 Correct 118 ms 19992 KB Output is correct
3 Correct 102 ms 21840 KB Output is correct
4 Correct 107 ms 21844 KB Output is correct

Subtask #9
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 478 ms 26348 KB Output is correct
2 Correct 246 ms 26192 KB Output is correct
3 Correct 219 ms 25436 KB Output is correct
4 Correct 285 ms 24916 KB Output is correct
5 Correct 557 ms 24404 KB Output is correct

Subtask #10
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 240 ms 24916 KB Output is correct
2 Correct 243 ms 29260 KB Output is correct
3 Correct 295 ms 27984 KB Output is correct
4 Correct 194 ms 28940 KB Output is correct
5 Correct 683 ms 25180 KB Output is correct

Subtask #11
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 273 ms 24656 KB Output is correct
2 Correct 224 ms 25512 KB Output is correct
3 Correct 512 ms 24148 KB Output is correct
4 Correct 322 ms 24784 KB Output is correct
5 Correct 175 ms 28868 KB Output is correct
6 Correct 731 ms 24404 KB Output is correct