Submission #334236

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
334236	2020-12-08T17:50:35 Z	ttnhuy313	Potatoes and fertilizers (LMIO19_bulves)	C++14	100 / 100	185 ms	23312 KB

bulves

#include <bits/stdc++.h>

using namespace std;
#define int long long

const int N = 5e5 + 5;
int n, a[N], b[N], c[N];

signed main() {
	ios_base::sync_with_stdio(0); cin.tie(0);

	cin >> n;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i] >> b[i];
		c[i] = c[i - 1] + a[i] - b[i];
	}
	int res = 0;
	for (int i = 1; i <= n; ++i) {
		if (c[i] < 0) {
			res += -c[i];
			c[i] = 0;
		}
		if (c[i] > c[n]) {
			res += c[i] - c[n];
			c[i] = c[n];
		}
	}
	priority_queue <int> pq;
	while (!pq.empty()) pq.pop();
	for (int i = 1; i <= n; ++i) {
		pq.push(c[i]);
		if (c[i] < pq.top()) {
			res += pq.top() - c[i];
			pq.pop();
			pq.push(c[i]);
		}
	}
	cout << res << endl;

	return 0;
}

Subtask #1

24.0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	9 ms	2544 KB	Output is correct
5	Correct	21 ms	4588 KB	Output is correct
6	Correct	54 ms	11752 KB	Output is correct
7	Correct	117 ms	23312 KB	Output is correct
8	Correct	92 ms	21220 KB	Output is correct
9	Correct	90 ms	20648 KB	Output is correct
10	Correct	73 ms	18276 KB	Output is correct
11	Correct	73 ms	18276 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	9 ms	2544 KB	Output is correct
5	Correct	21 ms	4588 KB	Output is correct
6	Correct	54 ms	11752 KB	Output is correct
7	Correct	117 ms	23312 KB	Output is correct
8	Correct	92 ms	21220 KB	Output is correct
9	Correct	90 ms	20648 KB	Output is correct
10	Correct	73 ms	18276 KB	Output is correct
11	Correct	73 ms	18276 KB	Output is correct
12	Correct	28 ms	6124 KB	Output is correct
13	Correct	71 ms	15716 KB	Output is correct
14	Correct	117 ms	23140 KB	Output is correct
15	Correct	92 ms	21220 KB	Output is correct
16	Correct	101 ms	20580 KB	Output is correct
17	Correct	90 ms	18276 KB	Output is correct
18	Correct	1 ms	524 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	524 KB	Output is correct

Subtask #4

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	2 ms	492 KB	Output is correct
13	Correct	2 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	2 ms	492 KB	Output is correct
18	Correct	1 ms	524 KB	Output is correct

Subtask #5

36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	9 ms	2544 KB	Output is correct
12	Correct	21 ms	4588 KB	Output is correct
13	Correct	54 ms	11752 KB	Output is correct
14	Correct	117 ms	23312 KB	Output is correct
15	Correct	92 ms	21220 KB	Output is correct
16	Correct	90 ms	20648 KB	Output is correct
17	Correct	73 ms	18276 KB	Output is correct
18	Correct	73 ms	18276 KB	Output is correct
19	Correct	28 ms	6124 KB	Output is correct
20	Correct	71 ms	15716 KB	Output is correct
21	Correct	117 ms	23140 KB	Output is correct
22	Correct	92 ms	21220 KB	Output is correct
23	Correct	101 ms	20580 KB	Output is correct
24	Correct	90 ms	18276 KB	Output is correct
25	Correct	1 ms	492 KB	Output is correct
26	Correct	2 ms	492 KB	Output is correct
27	Correct	2 ms	492 KB	Output is correct
28	Correct	1 ms	492 KB	Output is correct
29	Correct	1 ms	492 KB	Output is correct
30	Correct	1 ms	492 KB	Output is correct
31	Correct	2 ms	492 KB	Output is correct
32	Correct	43 ms	6380 KB	Output is correct
33	Correct	119 ms	15716 KB	Output is correct
34	Correct	185 ms	23268 KB	Output is correct
35	Correct	160 ms	20824 KB	Output is correct
36	Correct	109 ms	21348 KB	Output is correct
37	Correct	157 ms	23160 KB	Output is correct
38	Correct	101 ms	19388 KB	Output is correct
39	Correct	110 ms	18148 KB	Output is correct
40	Correct	97 ms	18276 KB	Output is correct
41	Correct	97 ms	18404 KB	Output is correct
42	Correct	102 ms	18276 KB	Output is correct
43	Correct	102 ms	18276 KB	Output is correct
44	Correct	123 ms	23140 KB	Output is correct
45	Correct	89 ms	18660 KB	Output is correct
46	Correct	105 ms	16484 KB	Output is correct
47	Correct	1 ms	524 KB	Output is correct