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Submission #556777

# Submission time Handle Problem Language Result Execution time Memory
556777 2022-05-04T00:52:11 Z lunchbox Distributing Candies (IOI21_candies) C++17
100 / 100
 314 ms 29252 KB 
/*
https://oj.uz/problem/view/IOI21_candies
Distributing Candies
*/
#include <bits/stdc++.h>
using namespace std;

#define N	200000
#define Q	200000
#define N_	(1 << 18)	/* N_ = pow2(ceil(log2(N)) */

long long sum[N_ * 2], mn[N_ * 2], mx[N_ * 2]; int n_;

void pul(int i) {
	int l = i << 1 | 0, r = i << 1 | 1;

	sum[i] = sum[l] + sum[r];
	mn[i] = min(mn[r], mn[l] + sum[r]);
	mx[i] = max(mx[r], mx[l] + sum[r]);
}

void update(int i, int x) {
	i |= n_;
	sum[i] = x;
	mn[i] = min(x, 0);
	mx[i] = max(x, 0);
	while (i > 1)
		pul(i >>= 1);
}

int query(int c) {
	long long s = 0, mn_ = 0, mx_ = 0;
	int i = 1;

	if (mx[1] - mn[1] <= c)
		return mx[1];
	while (i < n_)
		if (max(mx_, mx[i << 1 | 1] + s) - min(mn_, mn[i << 1 | 1] + s) <= c) {
			i = i << 1 | 0;
			mn_ = min(mn_, mn[i ^ 1] + s);
			mx_ = max(mx_, mx[i ^ 1] + s);
			s += sum[i ^ 1];
		} else
			i = i << 1 | 1;
	return min(max(sum[i] + s, mx_), c + mn_);
}

using vi = vector<int>;

vi distribute_candies(vi aa, vi ll, vi rr, vi vv) {
	vector<array<int, 3>> ee;
	int n, q, e;
	vi ans;

	n = aa.size(), q = ll.size();
	for (int h = 0; h < q; h++) {
		int l = ll[h], r = rr[h], v = vv[h];

		ee.push_back({l, h, v});
		ee.push_back({r + 1, h, 0});
	}
	n_ = 1;
	while (n_ < q)
		n_ <<= 1;
	e = 0, sort(ee.begin(), ee.end());
	for (int i = 0; i < n; i++) {
		while (e < q * 2 && ee[e][0] <= i) {
			update(ee[e][1], ee[e][2]);
			e++;
		}
		ans.push_back(query(aa[i]));
	}
	return ans;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 2 ms 576 KB Output is correct
4 Correct 2 ms 576 KB Output is correct
5 Correct 3 ms 596 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 314 ms 27432 KB Output is correct
2 Correct 280 ms 26524 KB Output is correct
3 Correct 276 ms 26436 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 218 ms 22336 KB Output is correct
3 Correct 53 ms 6344 KB Output is correct
4 Correct 303 ms 28544 KB Output is correct
5 Correct 262 ms 28820 KB Output is correct
6 Correct 301 ms 29252 KB Output is correct
7 Correct 263 ms 28592 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 128 ms 22076 KB Output is correct
4 Correct 49 ms 4416 KB Output is correct
5 Correct 178 ms 26036 KB Output is correct
6 Correct 183 ms 26764 KB Output is correct
7 Correct 173 ms 27312 KB Output is correct
8 Correct 212 ms 25868 KB Output is correct
9 Correct 172 ms 27404 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 2 ms 576 KB Output is correct
4 Correct 2 ms 576 KB Output is correct
5 Correct 3 ms 596 KB Output is correct
6 Correct 314 ms 27432 KB Output is correct
7 Correct 280 ms 26524 KB Output is correct
8 Correct 276 ms 26436 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 218 ms 22336 KB Output is correct
11 Correct 53 ms 6344 KB Output is correct
12 Correct 303 ms 28544 KB Output is correct
13 Correct 262 ms 28820 KB Output is correct
14 Correct 301 ms 29252 KB Output is correct
15 Correct 263 ms 28592 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 128 ms 22076 KB Output is correct
19 Correct 49 ms 4416 KB Output is correct
20 Correct 178 ms 26036 KB Output is correct
21 Correct 183 ms 26764 KB Output is correct
22 Correct 173 ms 27312 KB Output is correct
23 Correct 212 ms 25868 KB Output is correct
24 Correct 172 ms 27404 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 53 ms 4456 KB Output is correct
27 Correct 219 ms 21936 KB Output is correct
28 Correct 276 ms 27112 KB Output is correct
29 Correct 276 ms 27400 KB Output is correct
30 Correct 303 ms 27720 KB Output is correct
31 Correct 262 ms 27856 KB Output is correct
32 Correct 299 ms 28080 KB Output is correct