oj.uz

Submission #320689

# Submission time Handle Problem Language Result Execution time Memory
320689 2020-11-09T14:10:35 Z socho Discharging (NOI20_discharging) C++14
36 / 100
 4 ms 620 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 -