oj.uz

답안 #557182

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
557182 2022-05-04T20:31:31 Z lunchbox 푸드 코트 (JOI21_foodcourt) C++17
24 / 100
 305 ms 38228 KB 
#include <bits/stdc++.h>
using namespace std;

using LL = long long;
const int N = 250000, N_ = 1 << 18, INF = 0x3f3f3f3f;

int n_;

array<LL, 2> st1[N_ * 2];

array<LL, 2> join(array<LL, 2> a, array<LL, 2> b) {
	return { a[0] + b[0], max(a[1] + b[0], b[1]) };
}

void update1(int i, int x) {
	i |= n_;
	st1[i][0] = x;
	st1[i][1] = max(0, x);
	while (i >>= 1)
		st1[i] = join(st1[i << 1 | 0], st1[i << 1 | 1]);
}

LL query1(int l, int r) {
	vector<int> ll, rr;
	array<LL, 2> v = { 0, 0 };

	for (l |= n_, r |= n_; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1)
			ll.push_back(l++);
		if ((r & 1) == 0)
			rr.push_back(r--);
	}
	for (int i : ll)
		v = join(v, st1[i]);
	reverse(rr.begin(), rr.end());
	for (int i : rr)
		v = join(v, st1[i]);
	return v[1];
}

LL st2[N_ * 2];

void update2(int i, int x) {
	st2[i |= n_] = x;
	while (i >>= 1)
		st2[i] = st2[i << 1 | 0] + st2[i << 1 | 1];
}

LL query2(int l, int r) {
	LL sum = 0;

	for (l |= n_, r |= n_; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1)
			sum += st2[l++];
		if ((r & 1) == 0)
			sum += st2[r--];
	}
	return sum;
}

int query3(LL x) {
	int i = 1;

	while (i < n_) {
		if (st2[i << 1 | 0] < x) {
			x -= st2[i << 1 | 0];
			i = i << 1 | 1;
		} else
			i = i << 1 | 0;
	}
	return i ^ n_;
}

vector<pair<int, int>> uu[N], qq[N];

void run() {
	static int cc[N], ans[N];
	int n, m, q;

	scanf("%d%d%d", &n, &m, &q);
	n_ = 1;
	while (n_ < q)
		n_ <<= 1;
	for (int h = 0; h < q; h++) {
		int t;

		scanf("%d", &t);
		if (t == 1) {
			int l, r, k;

			scanf("%d%d%d%d", &l, &r, &cc[h], &k), l--;
			uu[l].push_back({ h << 1 | 0, k });
			uu[r].push_back({ h << 1 | 0, 0 });
		} else if (t == 2) {
			int l, r, k;

			scanf("%d%d%d", &l, &r, &k), l--;
			uu[l].push_back({ h << 1 | 1, -k });
			uu[r].push_back({ h << 1 | 1, 0 });
		} else {
			int i, k;

			scanf("%d%d", &i, &k), i--;
			qq[i].push_back({ h, k });
		}
	}
	memset(ans, -1, q * sizeof * ans);
	for (int i = 0; i < n; i++) {
		for (auto [h2, k] : uu[i]) {
			int h = h2 >> 1;

			update1(h, k);
			if ((h2 & 1) == 0)
				update2(h, k);
		}
		for (auto [h, k] : qq[i]) {
			LL x = query1(0, h);

			if (x < k)
				ans[h] = 0;
			else {
				LL d = query2(0, h) - x + k;

				ans[h] = cc[query3(d)];
			}
		}
	}
	for (int h = 0; h < q; h++)
		if (ans[h] != -1)
			printf("%d\n", ans[h]);
}

int main() {
	run();
	return 0;
}

Compilation message

foodcourt.cpp: In function 'void run()':
foodcourt.cpp:80:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |  scanf("%d%d%d", &n, &m, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   87 |   scanf("%d", &t);
      |   ~~~~~^~~~~~~~~~
foodcourt.cpp:91:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   91 |    scanf("%d%d%d%d", &l, &r, &cc[h], &k), l--;
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:97:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   97 |    scanf("%d%d%d", &l, &r, &k), l--;
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~~~
foodcourt.cpp:103:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  103 |    scanf("%d%d", &i, &k), i--;
      |    ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 9 ms 12224 KB Output is correct
3 Correct 8 ms 12224 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12244 KB Output is correct
6 Correct 8 ms 12188 KB Output is correct
7 Correct 9 ms 12168 KB Output is correct
8 Correct 8 ms 12200 KB Output is correct
9 Correct 8 ms 12244 KB Output is correct
10 Correct 8 ms 12244 KB Output is correct
11 Correct 9 ms 12244 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 12192 KB Output is correct
14 Correct 8 ms 12200 KB Output is correct
15 Correct 8 ms 12116 KB Output is correct
16 Correct 9 ms 12196 KB Output is correct
17 Correct 8 ms 12244 KB Output is correct
18 Correct 8 ms 12232 KB Output is correct
19 Correct 8 ms 12244 KB Output is correct
20 Correct 8 ms 12244 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 9 ms 12224 KB Output is correct
3 Correct 8 ms 12224 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12244 KB Output is correct
6 Correct 8 ms 12188 KB Output is correct
7 Correct 9 ms 12168 KB Output is correct
8 Correct 8 ms 12200 KB Output is correct
9 Correct 8 ms 12244 KB Output is correct
10 Correct 8 ms 12244 KB Output is correct
11 Correct 9 ms 12244 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 12192 KB Output is correct
14 Correct 8 ms 12200 KB Output is correct
15 Correct 8 ms 12116 KB Output is correct
16 Correct 9 ms 12196 KB Output is correct
17 Correct 8 ms 12244 KB Output is correct
18 Correct 8 ms 12232 KB Output is correct
19 Correct 8 ms 12244 KB Output is correct
20 Correct 8 ms 12244 KB Output is correct
21 Incorrect 8 ms 12252 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 66 ms 19084 KB Output is correct
2 Correct 61 ms 19128 KB Output is correct
3 Correct 58 ms 19016 KB Output is correct
4 Correct 58 ms 19020 KB Output is correct
5 Correct 60 ms 19084 KB Output is correct
6 Correct 63 ms 19148 KB Output is correct
7 Correct 41 ms 17148 KB Output is correct
8 Correct 41 ms 17284 KB Output is correct
9 Correct 58 ms 18716 KB Output is correct
10 Correct 57 ms 19140 KB Output is correct
11 Correct 61 ms 18948 KB Output is correct
12 Correct 60 ms 19124 KB Output is correct
13 Correct 51 ms 18096 KB Output is correct
14 Correct 62 ms 18952 KB Output is correct
15 Correct 56 ms 18876 KB Output is correct
16 Correct 59 ms 19100 KB Output is correct

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 305 ms 38228 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 9 ms 12224 KB Output is correct
3 Correct 8 ms 12224 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12244 KB Output is correct
6 Correct 8 ms 12188 KB Output is correct
7 Correct 9 ms 12168 KB Output is correct
8 Correct 8 ms 12200 KB Output is correct
9 Correct 8 ms 12244 KB Output is correct
10 Correct 8 ms 12244 KB Output is correct
11 Correct 9 ms 12244 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 12192 KB Output is correct
14 Correct 8 ms 12200 KB Output is correct
15 Correct 8 ms 12116 KB Output is correct
16 Correct 9 ms 12196 KB Output is correct
17 Correct 8 ms 12244 KB Output is correct
18 Correct 8 ms 12232 KB Output is correct
19 Correct 8 ms 12244 KB Output is correct
20 Correct 8 ms 12244 KB Output is correct
21 Correct 66 ms 19084 KB Output is correct
22 Correct 61 ms 19128 KB Output is correct
23 Correct 58 ms 19016 KB Output is correct
24 Correct 58 ms 19020 KB Output is correct
25 Correct 60 ms 19084 KB Output is correct
26 Correct 63 ms 19148 KB Output is correct
27 Correct 41 ms 17148 KB Output is correct
28 Correct 41 ms 17284 KB Output is correct
29 Correct 58 ms 18716 KB Output is correct
30 Correct 57 ms 19140 KB Output is correct
31 Correct 61 ms 18948 KB Output is correct
32 Correct 60 ms 19124 KB Output is correct
33 Correct 51 ms 18096 KB Output is correct
34 Correct 62 ms 18952 KB Output is correct
35 Correct 56 ms 18876 KB Output is correct
36 Correct 59 ms 19100 KB Output is correct
37 Correct 60 ms 18244 KB Output is correct
38 Correct 52 ms 17624 KB Output is correct
39 Correct 34 ms 16444 KB Output is correct
40 Correct 37 ms 17084 KB Output is correct
41 Correct 58 ms 18340 KB Output is correct
42 Correct 60 ms 18968 KB Output is correct
43 Correct 62 ms 18968 KB Output is correct
44 Correct 59 ms 18644 KB Output is correct
45 Correct 62 ms 19132 KB Output is correct
46 Correct 59 ms 18916 KB Output is correct
47 Correct 47 ms 17828 KB Output is correct
48 Correct 51 ms 18392 KB Output is correct
49 Correct 44 ms 17028 KB Output is correct
50 Correct 49 ms 17948 KB Output is correct
51 Correct 59 ms 18944 KB Output is correct
52 Correct 60 ms 18940 KB Output is correct
53 Correct 45 ms 17664 KB Output is correct
54 Correct 60 ms 19140 KB Output is correct

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 64 ms 18832 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 9 ms 12224 KB Output is correct
3 Correct 8 ms 12224 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12244 KB Output is correct
6 Correct 8 ms 12188 KB Output is correct
7 Correct 9 ms 12168 KB Output is correct
8 Correct 8 ms 12200 KB Output is correct
9 Correct 8 ms 12244 KB Output is correct
10 Correct 8 ms 12244 KB Output is correct
11 Correct 9 ms 12244 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 12192 KB Output is correct
14 Correct 8 ms 12200 KB Output is correct
15 Correct 8 ms 12116 KB Output is correct
16 Correct 9 ms 12196 KB Output is correct
17 Correct 8 ms 12244 KB Output is correct
18 Correct 8 ms 12232 KB Output is correct
19 Correct 8 ms 12244 KB Output is correct
20 Correct 8 ms 12244 KB Output is correct
21 Incorrect 8 ms 12252 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 12244 KB Output is correct
2 Correct 9 ms 12224 KB Output is correct
3 Correct 8 ms 12224 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12244 KB Output is correct
6 Correct 8 ms 12188 KB Output is correct
7 Correct 9 ms 12168 KB Output is correct
8 Correct 8 ms 12200 KB Output is correct
9 Correct 8 ms 12244 KB Output is correct
10 Correct 8 ms 12244 KB Output is correct
11 Correct 9 ms 12244 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 12192 KB Output is correct
14 Correct 8 ms 12200 KB Output is correct
15 Correct 8 ms 12116 KB Output is correct
16 Correct 9 ms 12196 KB Output is correct
17 Correct 8 ms 12244 KB Output is correct
18 Correct 8 ms 12232 KB Output is correct
19 Correct 8 ms 12244 KB Output is correct
20 Correct 8 ms 12244 KB Output is correct
21 Incorrect 8 ms 12252 KB Output isn't correct
22 Halted 0 ms 0 KB -