oj.uz

답안 #810919

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
810919 2023-08-06T17:28:36 Z parsadox2 푸드 코트 (JOI21_foodcourt) C++14
13 / 100
 370 ms 56216 KB 
#include <bits/stdc++.h>
#define int long long 
using namespace std;

const int maxn = 25e4 + 10;
int n , m , q , k[maxn] , c[maxn] , ans[maxn];
vector <int> ask[maxn] , all[2][maxn];

struct nod{
	int sum , sum_neg , suf_sum;
	nod()
	{
		sum = 0;
		sum_neg = 0;
		suf_sum = 0;
	}
} tree[maxn << 2];

nod Merge(nod a , nod b)
{
	nod res;
	res.sum_neg = a.sum_neg + b.sum_neg;
	res.sum = a.sum + b.sum;
	res.suf_sum = max(b.suf_sum , b.sum + a.suf_sum);
	return res;
}

void Add(int ind , int val , int ty = 1 , int node = 1 , int nl = 0 , int nr = q)
{
	if(nr - nl == 1)
	{
		tree[node].sum = ty * val;
		tree[node].sum_neg = min(0LL , tree[node].sum);
		tree[node].suf_sum = max(tree[node].sum , 0LL);
		return;
	}
	int mid = (nl + nr) >> 1 , lc = node << 1 , rc = lc | 1;
	if(ind < mid)
		Add(ind , val , ty , lc , nl , mid);
	else
		Add(ind , val , ty , rc , mid , nr);
	tree[node] = Merge(tree[lc] , tree[rc]);
}

nod Get(int l , int r , int node = 1 , int nl = 0 , int nr = q)
{
	if(r <= nl || nr <= l)
	{
		nod tmp;
		return tmp;
	}
	if(l <= nl && nr <= r)
		return tree[node];
	int mid = (nl + nr) >> 1 , lc = node << 1 , rc = lc | 1;
	return Merge(Get(l , r , lc , nl , mid) , Get(l , r , rc , mid , nr));
}

int solve(int ind)
{
	nod check = Get(0 , ind) , check2 = Get(ind , q);
	int val = k[ind];
	if(check.suf_sum + check2.sum_neg < val)
		return 0;
	int low = -1 , high = ind - 1;
	while(high - low > 1)
	{
		int mid = (high + low) >> 1;
		nod g1 = Get(0 , mid + 1) , g2 = Get(mid + 1 , q);
		int tmp = g1.suf_sum + g2.sum_neg;
		if(tmp >= val)
			high = mid;
		else
			low = mid;
	}
	return c[high];
}

signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	//cout.tie(0);
	memset(ans , -1 , sizeof ans);
	cin >> n >> m >> q;
	for(int i = 0 ; i < q ; i++)
	{
		int ty;  cin >> ty;
		if(ty == 1)
		{
			int l , r;  cin >> l >> r >> c[i] >> k[i];
			all[0][l].push_back(i);
			all[1][r].push_back(i);
		}
		else if(ty == 2)
		{
			int l , r;  cin >> l >> r >> k[i];
			k[i] *= -1;
			all[0][l].push_back(i);
			all[1][r].push_back(i);
		}
		else
		{
			int a;  cin >> a >> k[i];
			ask[a].push_back(i);
		}
	}
	for(int i = 1 ; i <= n ; i++)
	{
		for(auto u : all[0][i])
		{
			//cout << "Hi Add" << endl;
			Add(u , k[u]);
			//cout << "Bye Add" << endl;
		}
		for(auto u : ask[i])
		{
			//cout << "Hi solve" << endl;
			ans[u] = solve(u);
			//cout << "Bye solve" << endl;
		}
		for(auto u : all[1][i])
			Add(u , k[u] , 0);
	}
	for(int i = 0 ; i < q ; i++)  if(ans[i] != -1)
		cout << ans[i] << endl;
	return 0;
}

Subtask #1
0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 26 ms 43384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 26 ms 43384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 88 ms 47372 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 370 ms 56216 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 26 ms 43384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 182 ms 46924 KB Output is correct
2 Correct 204 ms 47520 KB Output is correct
3 Correct 195 ms 47636 KB Output is correct
4 Correct 156 ms 46548 KB Output is correct
5 Correct 170 ms 47052 KB Output is correct
6 Correct 198 ms 47544 KB Output is correct
7 Correct 153 ms 45900 KB Output is correct
8 Correct 144 ms 45944 KB Output is correct
9 Correct 193 ms 46724 KB Output is correct
10 Correct 132 ms 46068 KB Output is correct
11 Correct 185 ms 46744 KB Output is correct
12 Correct 186 ms 46744 KB Output is correct

Subtask #7
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 26 ms 43384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 26 ms 43384 KB Output isn't correct
2 Halted 0 ms 0 KB -