oj.uz

답안 #342236

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
342236 2021-01-01T16:28:46 Z VodkaInTheJar 운세 보기 2 (JOI14_fortune_telling2) C++14
4 / 100
 3000 ms 11288 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#define endl '\n'

using namespace std;

const int maxn = 2e5 + 3; 

int n, k; 
pair <int, int> a[maxn];
int t[maxn];
void read()
{
	cin >> n >> k;
	for (int i = 1; i <= n; i++)
	cin >> a[i].first >> a[i].second;
	
	for (int i = 1; i <= k; i++)
	cin >> t[i];
}

int tr[maxn * 8];
void merge(int v)
{
	tr[v] = max(tr[v * 2], tr[v * 2 + 1]);
}

void update(int v, int l, int r, int pos, int val)
{
	if (l == r)
	{
		tr[v] = max(tr[v], val);
		return;
	}
	
	int mid = (l + r) / 2;
	if (pos <= mid)
	update(v * 2, l, mid, pos, val);
	
	else 
	update(v * 2 + 1, mid + 1, r, pos, val);
	
	merge(v);
}

int get(int v, int l, int r, int ll, int rr)
{
	if (l > rr || r < ll || ll > rr)
	return 0;
	
	if (l >= ll && r <= rr)
	return tr[v];
	
	int mid = (l + r) / 2;
	return max(get(v * 2, l, mid, ll, rr), get(v * 2 + 1, mid + 1, r, ll, rr));
}

int fenw[maxn * 2];
void update_fenw(int pos)
{
	if (pos < 1)
	return; 
	
	for (; pos <= 2 * n; pos += pos & -pos)
	fenw[pos]++; 
}

int get_pr(int pos)
{
	int ans = 0;
	for (; pos >= 1; pos -= pos & -pos)
	ans += fenw[pos];
	
	return ans;
}

vector <int> v;
vector <int> queries[maxn * 2];
int id[maxn];
void solve()
{
	for (int i = 1; i <= n; i++)
	{
		for (int j = 1; j <= k; j++)
		if (t[j] >= min(a[i].first, a[i].second) && t[j] < max(a[i].first, a[i].second))
		id[i] = j;
		
		v.push_back(a[i].first);
		v.push_back(a[i].second);
	}
	
	sort (v.begin(), v.end());
	
	for (int i = 1; i <= k; i++)
	{
		int pos = lower_bound(v.begin(), v.end(), t[i]) - v.begin();
		//if (pos != 2 * n && v[pos] == t[i])
		//t[i] = pos + 1;
		
		if (pos != 2 * n && v[pos] == t[i])
		pos++;
		
		//else 
		//t[i] = pos;  
		
	    update(1, 1, 2 * n, pos, i);
	}
	
	for (int i = 1; i <= n; i++)
	{
		int f = lower_bound(v.begin(), v.end(), a[i].first) - v.begin() + 1, s = lower_bound(v.begin(), v.end(), a[i].second) - v.begin() + 1;
		queries[get(1, 1, 2 * n, min(f, s), max(f, s) - 1)].push_back(i);
	}
	
	long long ans = 0;
	for (int i = k; i >= 0; i--)
	{
		for (auto j: queries[i])
		{
			//int curr_pos = lower_bound(v.begin(), v.end(), max(a[j].first, a[j].second)) - v.begin() + 1; 
			//int cnt = k - i - get_pr(curr_pos - 1);
			int cnt = 0;
			for (int p = i+1; p <= k; p++)
			if (t[p] >= a[j].second)
			cnt++; 
			
			if (i == 0)
			ans += (cnt & 1) ? (long long)a[j].second : (long long)a[j].first;
			
			else 
			ans += (cnt & 1) ? (long long)min(a[j].first, a[j].second) : (long long)max(a[j].first, a[j].second);
		}
		
		if (i != 0)
		update_fenw(t[i]);
	}
	
	cout << ans << endl; 
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);

	read();
	solve();
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 9708 KB Output is correct
2 Correct 10 ms 9836 KB Output is correct
3 Correct 12 ms 9836 KB Output is correct
4 Correct 14 ms 9836 KB Output is correct
5 Correct 13 ms 9836 KB Output is correct
6 Correct 13 ms 9836 KB Output is correct
7 Correct 11 ms 9836 KB Output is correct
8 Correct 9 ms 9836 KB Output is correct
9 Correct 8 ms 9836 KB Output is correct
10 Correct 11 ms 9836 KB Output is correct
11 Correct 11 ms 9836 KB Output is correct
12 Correct 10 ms 9836 KB Output is correct
13 Correct 11 ms 9836 KB Output is correct

Subtask #2
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 9708 KB Output is correct
2 Correct 10 ms 9836 KB Output is correct
3 Correct 12 ms 9836 KB Output is correct
4 Correct 14 ms 9836 KB Output is correct
5 Correct 13 ms 9836 KB Output is correct
6 Correct 13 ms 9836 KB Output is correct
7 Correct 11 ms 9836 KB Output is correct
8 Correct 9 ms 9836 KB Output is correct
9 Correct 8 ms 9836 KB Output is correct
10 Correct 11 ms 9836 KB Output is correct
11 Correct 11 ms 9836 KB Output is correct
12 Correct 10 ms 9836 KB Output is correct
13 Correct 11 ms 9836 KB Output is correct
14 Correct 571 ms 10348 KB Output is correct
15 Correct 2226 ms 11288 KB Output is correct
16 Execution timed out 3086 ms 10732 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 9708 KB Output is correct
2 Correct 10 ms 9836 KB Output is correct
3 Correct 12 ms 9836 KB Output is correct
4 Correct 14 ms 9836 KB Output is correct
5 Correct 13 ms 9836 KB Output is correct
6 Correct 13 ms 9836 KB Output is correct
7 Correct 11 ms 9836 KB Output is correct
8 Correct 9 ms 9836 KB Output is correct
9 Correct 8 ms 9836 KB Output is correct
10 Correct 11 ms 9836 KB Output is correct
11 Correct 11 ms 9836 KB Output is correct
12 Correct 10 ms 9836 KB Output is correct
13 Correct 11 ms 9836 KB Output is correct
14 Correct 571 ms 10348 KB Output is correct
15 Correct 2226 ms 11288 KB Output is correct
16 Execution timed out 3086 ms 10732 KB Time limit exceeded
17 Halted 0 ms 0 KB -