답안 #320689

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
320689	2020-11-09T14:10:35 Z	socho	Discharging (NOI20_discharging)	C++14	36 / 100	4 ms	620 KB

Discharging

#include <bits/stdc++.h>
using namespace std;
void fast() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
}
void ran() {
	srand(chrono::steady_clock::now().time_since_epoch().count());
}
long long get_rand() {
	long long a = rand();
	long long b = rand();
	return a * (RAND_MAX + 1ll) + b;
}
void usaco() {
	freopen("problem.in", "r", stdin); 
	freopen("problem.out", "w", stdout);
}
template<typename T>
using min_pq = priority_queue<T, vector<T>, greater<T>>;
// #define endl '\n'
// #define double long double
#define int long long
// int MOD = 1000 * 1000 * 1000 + 7;
// int MOD = 998244353;

const int MXN = 1505;
int n;
int arr[MXN];
int dp[MXN];

signed main() {

	ran(); fast();

	cin >> n;
	for (int i=1; i<=n; i++) {
		cin >> arr[i];
		arr[i] = max(arr[i-1], arr[i]);
	}
	
	dp[0] = 0;
	for (int i=1; i<=n; i++) {
		dp[i] = LLONG_MAX;
		int al = 0;
		for (int j=i; j>=1; j--) {
			al = max(al, arr[j]);
			dp[i] = min(dp[i], (n - j + 1) * al + dp[j-1]);
		}
	}
	
	cout << dp[n] << endl;
	
	
	
}

Compilation message

Discharging.cpp: In function 'void usaco()':
Discharging.cpp:15:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   15 |  freopen("problem.in", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
Discharging.cpp:16:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   16 |  freopen("problem.out", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	364 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	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	364 KB	Output is correct
2	Correct	2 ms	364 KB	Output is correct
3	Correct	3 ms	364 KB	Output is correct
4	Correct	2 ms	408 KB	Output is correct
5	Correct	3 ms	364 KB	Output is correct
6	Correct	3 ms	364 KB	Output is correct
7	Correct	3 ms	364 KB	Output is correct
8	Correct	2 ms	364 KB	Output is correct
9	Correct	4 ms	364 KB	Output is correct
10	Correct	2 ms	364 KB	Output is correct
11	Correct	3 ms	364 KB	Output is correct
12	Correct	2 ms	364 KB	Output is correct
13	Correct	2 ms	364 KB	Output is correct
14	Correct	3 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	364 KB	Output is correct
2	Correct	2 ms	364 KB	Output is correct
3	Correct	3 ms	364 KB	Output is correct
4	Correct	2 ms	408 KB	Output is correct
5	Correct	3 ms	364 KB	Output is correct
6	Correct	3 ms	364 KB	Output is correct
7	Correct	3 ms	364 KB	Output is correct
8	Correct	2 ms	364 KB	Output is correct
9	Correct	4 ms	364 KB	Output is correct
10	Correct	2 ms	364 KB	Output is correct
11	Correct	3 ms	364 KB	Output is correct
12	Correct	2 ms	364 KB	Output is correct
13	Correct	2 ms	364 KB	Output is correct
14	Correct	3 ms	364 KB	Output is correct
15	Correct	2 ms	364 KB	Output is correct
16	Incorrect	1 ms	364 KB	Output isn't correct
17	Halted	0 ms	0 KB	-

Subtask #4
0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	1 ms	620 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
2	Halted	0 ms	0 KB	-

Subtask #5
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	364 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	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	3 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	3 ms	364 KB	Output is correct
18	Correct	2 ms	408 KB	Output is correct
19	Correct	3 ms	364 KB	Output is correct
20	Correct	3 ms	364 KB	Output is correct
21	Correct	3 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	4 ms	364 KB	Output is correct
24	Correct	2 ms	364 KB	Output is correct
25	Correct	3 ms	364 KB	Output is correct
26	Correct	2 ms	364 KB	Output is correct
27	Correct	2 ms	364 KB	Output is correct
28	Correct	3 ms	364 KB	Output is correct
29	Correct	2 ms	364 KB	Output is correct
30	Correct	3 ms	492 KB	Output is correct
31	Correct	3 ms	364 KB	Output is correct
32	Correct	3 ms	364 KB	Output is correct
33	Correct	2 ms	364 KB	Output is correct
34	Correct	3 ms	364 KB	Output is correct
35	Correct	2 ms	364 KB	Output is correct
36	Correct	3 ms	364 KB	Output is correct
37	Correct	4 ms	364 KB	Output is correct
38	Correct	3 ms	364 KB	Output is correct
39	Correct	3 ms	364 KB	Output is correct
40	Correct	2 ms	364 KB	Output is correct
41	Correct	4 ms	364 KB	Output is correct
42	Correct	4 ms	364 KB	Output is correct
43	Correct	3 ms	364 KB	Output is correct
44	Correct	3 ms	364 KB	Output is correct
45	Correct	2 ms	364 KB	Output is correct
46	Correct	2 ms	364 KB	Output is correct
47	Correct	3 ms	364 KB	Output is correct
48	Correct	2 ms	364 KB	Output is correct
49	Correct	2 ms	364 KB	Output is correct
50	Correct	3 ms	364 KB	Output is correct

Subtask #6
0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	364 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	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	0 ms	364 KB	Output is correct
15	Correct	3 ms	364 KB	Output is correct
16	Correct	2 ms	364 KB	Output is correct
17	Correct	3 ms	364 KB	Output is correct
18	Correct	2 ms	408 KB	Output is correct
19	Correct	3 ms	364 KB	Output is correct
20	Correct	3 ms	364 KB	Output is correct
21	Correct	3 ms	364 KB	Output is correct
22	Correct	2 ms	364 KB	Output is correct
23	Correct	4 ms	364 KB	Output is correct
24	Correct	2 ms	364 KB	Output is correct
25	Correct	3 ms	364 KB	Output is correct
26	Correct	2 ms	364 KB	Output is correct
27	Correct	2 ms	364 KB	Output is correct
28	Correct	3 ms	364 KB	Output is correct
29	Correct	2 ms	364 KB	Output is correct
30	Incorrect	1 ms	364 KB	Output isn't correct
31	Halted	0 ms	0 KB	-

답안 #320689

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 13.0 / 13.0

Subtask #3 0 / 25.0

Subtask #4 0 / 11.0

Subtask #5 14.0 / 14.0

Subtask #6 0 / 28.0

Subtask #1
9.0 / 9.0

Subtask #2
13.0 / 13.0

Subtask #3
0 / 25.0

Subtask #4
0 / 11.0

Subtask #5
14.0 / 14.0

Subtask #6
0 / 28.0