Submission #931058

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
931058	2024-02-21T07:21:34 Z	vjudge1	Tree Rotations (POI11_rot)	C++17	100 / 100	725 ms	47184 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], tin[N], tout[N], eul[N], sz[N], t[N*4], l[N], r[N], szz;
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 go(int v=1, int cl=0){
	if(c[v]){
		if(cl==0)tupd(c[v], 1);
		return;
	}
	int big, small;
	if(sz[l[v]] < sz[r[v]]){
		big = r[v];
		small = l[v]; 
	}
	else{
		big = l[v];
		small = r[v];
	}
	go(small, 1);
	go(big, 0);
	int a=0, b=0;
	for(int i=tin[small]; i <= tout[small]; i++){	
		a += get(eul[i], n);
		b += get(1, eul[i]);
	}
	ans += min(a, b);
	if(cl==0) {
		for(int i=tin[small]; i <= tout[small]; i++){
			tupd(eul[i], 1);
		}
	}
	else{
		for(int i=tin[big]; i <= tout[big]; i++){
			tupd(eul[i], 0);
		}
	}
	
}
void rec(){
	cin >> c[szz];
	if(c[szz]){
		tin[szz] = tout[szz] = ++timer;
		eul[timer] = c[szz];
		sz[szz] = 1;
	}
	else{
		int cur = szz;
		
		szz++;
		l[cur] = szz;
		rec();
		
		szz++;
		r[cur] = szz;
		rec();
		
		tin[cur] = tin[l[cur]];
		tout[cur] = timer;
		
		sz[cur] = sz[l[cur]] + sz[r[cur]];
	}
}
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

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	14684 KB	Output is correct
2	Correct	2 ms	14684 KB	Output is correct
3	Correct	2 ms	14684 KB	Output is correct
4	Correct	2 ms	14684 KB	Output is correct
5	Correct	2 ms	14684 KB	Output is correct

Subtask #2
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	14684 KB	Output is correct
2	Correct	2 ms	14684 KB	Output is correct
3	Correct	2 ms	14684 KB	Output is correct
4	Correct	2 ms	14684 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	14684 KB	Output is correct
2	Correct	3 ms	14684 KB	Output is correct
3	Correct	3 ms	14680 KB	Output is correct
4	Correct	2 ms	14684 KB	Output is correct

Subtask #4
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	14940 KB	Output is correct
2	Correct	7 ms	14684 KB	Output is correct
3	Correct	4 ms	14936 KB	Output is correct
4	Correct	4 ms	15208 KB	Output is correct

Subtask #5
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	15964 KB	Output is correct
2	Correct	24 ms	16988 KB	Output is correct
3	Correct	80 ms	21084 KB	Output is correct
4	Correct	16 ms	17756 KB	Output is correct

Subtask #6
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	129 ms	23216 KB	Output is correct
2	Correct	59 ms	24924 KB	Output is correct
3	Correct	71 ms	26308 KB	Output is correct
4	Correct	65 ms	26104 KB	Output is correct

Subtask #7
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	51 ms	33628 KB	Output is correct
2	Correct	86 ms	30212 KB	Output is correct
3	Correct	130 ms	28208 KB	Output is correct
4	Correct	97 ms	27992 KB	Output is correct

Subtask #8
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	142 ms	31832 KB	Output is correct
2	Correct	124 ms	33384 KB	Output is correct
3	Correct	109 ms	37136 KB	Output is correct
4	Correct	110 ms	36816 KB	Output is correct

Subtask #9
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	482 ms	40356 KB	Output is correct
2	Correct	277 ms	38512 KB	Output is correct
3	Correct	222 ms	39260 KB	Output is correct
4	Correct	287 ms	38044 KB	Output is correct
5	Correct	546 ms	36512 KB	Output is correct

Subtask #10
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	253 ms	39244 KB	Output is correct
2	Correct	266 ms	44784 KB	Output is correct
3	Correct	296 ms	42064 KB	Output is correct
4	Correct	213 ms	46932 KB	Output is correct
5	Correct	685 ms	36768 KB	Output is correct

Subtask #11
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	288 ms	37460 KB	Output is correct
2	Correct	229 ms	39948 KB	Output is correct
3	Correct	514 ms	36552 KB	Output is correct
4	Correct	339 ms	37684 KB	Output is correct
5	Correct	187 ms	47184 KB	Output is correct
6	Correct	725 ms	36516 KB	Output is correct

Submission #931058

Compilation message