oj.uz

답안 #546055

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
546055 2022-04-06T07:35:04 Z blue 케이크 (CEOI14_cake) C++17
0 / 100
 1257 ms 32612 KB 
#include <iostream>
#include <vector>
#include <set>
#include <algorithm>
using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;
using pii = pair<int, int>;
#define sz(x) int(x.size())

int N;
vi d;

struct segtree
{
	int Z;
	vi l, r, mxv;

	void build(int i, int L, int R)
	{
		// cerr << "build " << i << ' ' << L << ' ' << R << '\n';
		l[i] = L;
		r[i] = R;
		if(l[i] == r[i])
		{
			// cerr << "case 1\n";
			mxv[i] = d[l[i]];
		}
		else
		{
			// cerr << "case 2\n";
			build(2*i, L, (L+R)/2);
			build(2*i+1, (L+R)/2+1, R);
			mxv[i] = max(mxv[2*i], mxv[2*i+1]);
		}
		// cerr << i << " -> " <<  l[i] << ' ' << r[i] << " : " << mxv[i] << '\n';
		// cerr << "exit\n";
	}

	segtree()
	{
		Z = 4*(1+N+1);
		l = r = mxv = vi(1 + Z);

		build(1, 0, N+1);
	}

	void update(int i, int p, int v)
	{
		if(l[i] == r[i]) mxv[i] = v;
		else 
		{
			if(p <= (l[i] + r[i])/2) update(2*i, p, v);
			else update(2*i+1, p, v);

			mxv[i] = max(mxv[2*i], mxv[2*i+1]);
		}
	}

	int rangemax(int i, int L, int R)
	{
		// cerr << "rangemax : " << i << ' ' << l[i] << ' ' << r[i] << " <> " << L << ' ' << R << '\n';
		if(R < l[i] || r[i] < L) return -1'000'000'000;
		else if(L <= l[i] && r[i] <= R) return mxv[i];
		else return max(rangemax(2*i, L, R), rangemax(2*i+1, L, R));
	}

	int locatenextgeq(int p, int v)
	{
		int i = 1;
		while(l[i] != r[i])
		{
			if(p <= (l[i] + r[i])/2)
				i = 2*i;
			else
				i = 2*i + 1;
		}

		if(mxv[i] >= v) return l[i];

		while(!(l[i] != r[i] && mxv[2*i+1] >= v))
			i /= 2;

		i = 2*i + 1;

		while(l[i] != r[i])
		{
			if(mxv[2*i] >= v)
				i = 2*i;
			else
				i = 2*i + 1;
		}

		return l[i];
	}

	int locateprevgeq(int p, int v)
	{
		int i = 1;
		while(l[i] != r[i])
		{
			if(p <= (l[i] + r[i])/2)
				i = 2*i;
			else
				i = 2*i + 1;
		}

		if(mxv[i] >= v) return l[i];

		// cerr << "positional i = " << i << '\n';

		while(!(l[i] != r[i] && mxv[2*i] >= v))
		{
			i /= 2;
			// cerr << i << ' ' << l[i] << ' ' << r[i] << " : " << mxv[2*i] << '\n';

			if(i == 0) while(1);
		}

		i = 2*i;
		
		// cerr << "resulting i = " << i << '\n';

		while(l[i] != r[i])
		{
			if(mxv[2*i + 1] >= v)
				i = 2*i + 1;
			else
				i = 2*i;
		}

		return l[i];
	}
};

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

	int a;

	cin >> N >> a;

	d = vi(1+N+1);
	for(int i = 1; i <= N; i++) cin >> d[i];
	d[0] = d[N+1] = 1'000'000'000;

	int ld = N+1;

	segtree S;

	// cerr << "done\n";

	set<pii> elements;
	for(int i = 1; i <= N; i++)
		elements.insert({d[i], i});

	int Q;
	cin >> Q;

	for(int j = 1; j <= Q; j++)
	{
		char c;
		cin >> c;

		if(c == 'E')
		{
			int i, e;
			cin >> i >> e;

			elements.erase({d[i], i});
			d[i] = ++ld;

			// cerr << "new di = " << 

			vector<pii> new_elements;
			new_elements.push_back({d[i], i});

			for(int f = 1; f <= e-1; f++)
			{
				auto x = *elements.rbegin();
				elements.erase(x);

				new_elements.push_back({++ld, x.second});
			}

			for(auto x : new_elements)
			{
				S.update(1, x.second, x.first);
				elements.insert(x);
			}
		}
		else
		{
			int b;
			cin >> b;

			if(a == b)
			{
				cout << 0 << '\n';
				continue;
			}

			if(a <= b)
			{
				// cerr << "hello\n";
				int rmx = S.rangemax(1, a+1, b);
				int prvp = S.locateprevgeq(a-1, rmx+1);

				cout << b - prvp - 1 << '\n';
			}
			else
			{
				// cerr << "!\n";
				int rmx = S.rangemax(1, b, a-1);
				// cerr << "rmx = " << rmx << '\n';
				int nxtp = S.locatenextgeq(a+1, rmx+1);
				// cerr << "nxtp = " << nxtp << '\n';

				cout << nxtp - b - 1 << '\n';
			}
		}
	}
}

Subtask #1
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 714 ms 13900 KB Output isn't correct
2 Incorrect 327 ms 1804 KB Output isn't correct
3 Incorrect 427 ms 6200 KB Output isn't correct
4 Correct 182 ms 1296 KB Output is correct
5 Incorrect 717 ms 15100 KB Output isn't correct
6 Incorrect 583 ms 13280 KB Output isn't correct
7 Incorrect 444 ms 7528 KB Output isn't correct
8 Correct 271 ms 2764 KB Output is correct

Subtask #3
0.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 108 ms 10572 KB Output isn't correct
2 Incorrect 81 ms 10652 KB Output isn't correct
3 Incorrect 74 ms 10464 KB Output isn't correct
4 Incorrect 0 ms 212 KB Output isn't correct
5 Incorrect 219 ms 25496 KB Output isn't correct
6 Incorrect 200 ms 25368 KB Output isn't correct
7 Incorrect 112 ms 25088 KB Output isn't correct

Subtask #4
0.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 62 ms 1304 KB Output isn't correct
2 Incorrect 43 ms 1100 KB Output isn't correct
3 Incorrect 107 ms 5540 KB Output isn't correct
4 Incorrect 138 ms 5664 KB Output isn't correct
5 Incorrect 178 ms 2992 KB Output isn't correct
6 Incorrect 189 ms 7500 KB Output isn't correct
7 Incorrect 168 ms 2756 KB Output isn't correct
8 Incorrect 254 ms 11856 KB Output isn't correct
9 Incorrect 1257 ms 29152 KB Output isn't correct
10 Incorrect 601 ms 8908 KB Output isn't correct
11 Incorrect 787 ms 10308 KB Output isn't correct
12 Incorrect 1242 ms 24760 KB Output isn't correct
13 Incorrect 826 ms 32612 KB Output isn't correct