Submission #800351

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
800351	2023-08-01T13:36:58 Z	leeminhduc2	Potatoes and fertilizers (LMIO19_bulves)	C++17	100 / 100	315 ms	15196 KB

bulves

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

int N;
ll fst = 0;                 // value of DP function at 0
priority_queue<ll> points;  // points where DP function changes slope

int main() {
	cin >> N;
	vector<ll> dif(N + 1);
	for (int i = 1; i <= N; ++i) {
		int a, b;
		cin >> a >> b;
		dif[i] = a - b + dif[i - 1];
	}
	assert(dif[N] >= 0);  // assume solution exists
	for (int i = 1; i < N; ++i) {
		if (dif[i] < 0) fst -= dif[i], dif[i] = 0;
		fst += dif[i];
		points.push(dif[i]);
		points.push(dif[i]);
		points.pop();
	}
	while (points.size()) {
		ll a = points.top();
		points.pop();
		fst -= min(a, dif[N]);
	}
	cout << fst << "\n";
}

Subtask #1

24.0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	21 ms	1332 KB	Output is correct
5	Correct	46 ms	2224 KB	Output is correct
6	Correct	153 ms	4408 KB	Output is correct
7	Correct	254 ms	8408 KB	Output is correct
8	Correct	267 ms	13268 KB	Output is correct
9	Correct	226 ms	12604 KB	Output is correct
10	Correct	170 ms	10312 KB	Output is correct
11	Correct	176 ms	10356 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	21 ms	1332 KB	Output is correct
5	Correct	46 ms	2224 KB	Output is correct
6	Correct	153 ms	4408 KB	Output is correct
7	Correct	254 ms	8408 KB	Output is correct
8	Correct	267 ms	13268 KB	Output is correct
9	Correct	226 ms	12604 KB	Output is correct
10	Correct	170 ms	10312 KB	Output is correct
11	Correct	176 ms	10356 KB	Output is correct
12	Correct	77 ms	4076 KB	Output is correct
13	Correct	184 ms	10892 KB	Output is correct
14	Correct	256 ms	15196 KB	Output is correct
15	Correct	277 ms	13412 KB	Output is correct
16	Correct	265 ms	12576 KB	Output is correct
17	Correct	162 ms	10320 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	2 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	2 ms	320 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct

Subtask #4

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	2 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	2 ms	320 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	2 ms	340 KB	Output is correct
13	Correct	2 ms	340 KB	Output is correct
14	Correct	3 ms	340 KB	Output is correct
15	Correct	2 ms	340 KB	Output is correct
16	Correct	2 ms	372 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	2 ms	340 KB	Output is correct

Subtask #5

36.0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	2 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	2 ms	320 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	21 ms	1332 KB	Output is correct
12	Correct	46 ms	2224 KB	Output is correct
13	Correct	153 ms	4408 KB	Output is correct
14	Correct	254 ms	8408 KB	Output is correct
15	Correct	267 ms	13268 KB	Output is correct
16	Correct	226 ms	12604 KB	Output is correct
17	Correct	170 ms	10312 KB	Output is correct
18	Correct	176 ms	10356 KB	Output is correct
19	Correct	77 ms	4076 KB	Output is correct
20	Correct	184 ms	10892 KB	Output is correct
21	Correct	256 ms	15196 KB	Output is correct
22	Correct	277 ms	13412 KB	Output is correct
23	Correct	265 ms	12576 KB	Output is correct
24	Correct	162 ms	10320 KB	Output is correct
25	Correct	2 ms	340 KB	Output is correct
26	Correct	2 ms	340 KB	Output is correct
27	Correct	3 ms	340 KB	Output is correct
28	Correct	2 ms	340 KB	Output is correct
29	Correct	2 ms	372 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	2 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	75 ms	4072 KB	Output is correct
34	Correct	188 ms	11160 KB	Output is correct
35	Correct	315 ms	15164 KB	Output is correct
36	Correct	278 ms	12756 KB	Output is correct
37	Correct	278 ms	13268 KB	Output is correct
38	Correct	309 ms	15120 KB	Output is correct
39	Correct	200 ms	11324 KB	Output is correct
40	Correct	210 ms	10812 KB	Output is correct
41	Correct	172 ms	10324 KB	Output is correct
42	Correct	172 ms	10320 KB	Output is correct
43	Correct	183 ms	10320 KB	Output is correct
44	Correct	171 ms	10400 KB	Output is correct
45	Correct	303 ms	15188 KB	Output is correct
46	Correct	208 ms	10704 KB	Output is correct
47	Correct	183 ms	10232 KB	Output is correct