oj.uz

Submission #931055

# Submission time Handle Problem Language Result Execution time Memory
931055 2024-02-21T07:16:40 Z vjudge1 Tree Rotations (POI11_rot) C++17
63 / 100
 479 ms 18028 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 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=2e6+7;
const int inf=1e9;
int c[N], tin[N], tout[N], eul[N], sz[N], t[N*4], l[N], r[N], szz, a, b;
vector <pair<int*, int>> rb;
int n, timer, ans;
void roll(int &x){
	rb.push_back({&x, x});
}
void tupd(int pos, int val, int v=1, int tl=1, int tr=n){
	// roll(t[v]);
	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();
		sz[v] += sz[l[v]];
		
		r[v] = ++szz;
		rec();
		sz[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

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 2 ms 8536 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory 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 8604 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8796 KB Output is correct
2 Correct 7 ms 8540 KB Output is correct
3 Correct 3 ms 8796 KB Output is correct
4 Correct 3 ms 8796 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9052 KB Output is correct
2 Correct 29 ms 8728 KB Output is correct
3 Correct 83 ms 10880 KB Output is correct
4 Correct 15 ms 9052 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 10844 KB Output is correct
2 Correct 60 ms 11608 KB Output is correct
3 Correct 71 ms 14512 KB Output is correct
4 Correct 70 ms 14416 KB Output is correct

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 16704 KB Output is correct
2 Correct 85 ms 16980 KB Output is correct
3 Correct 132 ms 16008 KB Output is correct
4 Correct 84 ms 17332 KB Output is correct

Subtask #8
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 137 ms 15212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 479 ms 18028 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 249 ms 17756 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 276 ms 17596 KB Output isn't correct
2 Halted 0 ms 0 KB -