oj.uz

Submission #159548

# Submission time Handle Problem Language Result Execution time Memory
159548 2019-10-23T07:41:02 Z DrSwad K blocks (IZhO14_blocks) C++17
0 / 100
 51 ms 42212 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1e5 + 10;
const int K = 105;
const int INF = 1e9;

int n, k;
int a[N];
int l[N];
int dp[N][K];

int main() {
	// freopen("in", "r", stdin);
	// freopen("out", "w", stdout);

	cin >> n >> k;
	for (int i = 1; i <= n; i++) scanf("%d", &a[i]);

	for (int i = 2; i <= n; i++) {
		int at = i - 1;
		while (at > 0 && a[at] < a[i]) at = l[at];
		l[i] = at;
	}

	fill(&dp[0][0], &dp[N][0], INF);
	dp[0][0] = 0;

	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= k; j++) {
			dp[i][j] = min(a[i] + dp[min(max(l[i], j - 1), i - 1)][j - 1], dp[l[i]][j]);
		}
	}

	cout << dp[n][k] << endl;

	return 0;
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:19:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
                               ~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41464 KB Output is correct
2 Correct 36 ms 41464 KB Output is correct
3 Correct 37 ms 41464 KB Output is correct
4 Correct 36 ms 41464 KB Output is correct
5 Correct 36 ms 41456 KB Output is correct
6 Correct 36 ms 41464 KB Output is correct
7 Correct 37 ms 41464 KB Output is correct
8 Correct 36 ms 41464 KB Output is correct
9 Correct 39 ms 41536 KB Output is correct
10 Correct 36 ms 41464 KB Output is correct
11 Correct 38 ms 41592 KB Output is correct
12 Correct 36 ms 41468 KB Output is correct
13 Incorrect 41 ms 41464 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41464 KB Output is correct
2 Correct 36 ms 41428 KB Output is correct
3 Correct 36 ms 41464 KB Output is correct
4 Correct 36 ms 41464 KB Output is correct
5 Correct 36 ms 41464 KB Output is correct
6 Correct 36 ms 41464 KB Output is correct
7 Correct 36 ms 41464 KB Output is correct
8 Correct 36 ms 41464 KB Output is correct
9 Correct 37 ms 41468 KB Output is correct
10 Correct 37 ms 41464 KB Output is correct
11 Correct 37 ms 41464 KB Output is correct
12 Incorrect 37 ms 41464 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 36 ms 41396 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 41596 KB Output is correct
2 Correct 45 ms 42212 KB Output is correct
3 Correct 45 ms 42108 KB Output is correct
4 Incorrect 51 ms 42104 KB Output isn't correct
5 Halted 0 ms 0 KB -