oj.uz

Submission #25526

# Submission time Handle Problem Language Result Execution time Memory
25526 2017-06-22T22:19:17 Z Bruteforceman K blocks (IZhO14_blocks) C++11
100 / 100
 206 ms 85760 KB 
#include "bits/stdc++.h"
using namespace std;

int a[100010];
long long dp[105][100005];
const long long inf = 1e15;

struct data {
	int val;
	long long dp, maxn;
	data (int val, long long dp, long long maxn) {
		this -> val = val;
		this -> dp = dp;
		this -> maxn = maxn;
	}
	data () {}
};

long long helpHRSiam(int N, int K, int A[]) {
	for(int i = 1; i <= N; i++) {
		a[i] = A[i-1];
	}
	memset(dp, 0, sizeof dp);
	dp[0][0] = 0;
	for(int i = 1; i <= N; i++) {
		dp[0][i] = inf;
	}
	for(int i = 1; i <= K; i++) {
		dp[i][0] = inf;
		stack <data> Q;
		for(int j = 1; j <= N; j++) {
			data x;
			x.val = a[j];
			x.dp = dp[i - 1][j - 1];
			while(!Q.empty() and Q.top().val <= a[j]) {
				x.dp = min(Q.top().dp, x.dp);
				Q.pop();
			}
			x.maxn = x.dp + x.val;
			if(!Q.empty()) x.maxn = min(x.maxn, Q.top().maxn);
			Q.push(x);
			dp[i][j] = Q.top().maxn;
		}
	}
	return dp[K][N];
}

int main(int argc, char const *argv[])
{
	int N, K;
	scanf("%d %d", &N, &K);
	int *A;
	A = new int [N];
	for(int i = 0; i < N; i++) {
		scanf("%d", &A[i]);
	}
	printf("%lld\n", helpHRSiam(N, K, A));
	return 0;
}

Compilation message

blocks.cpp: In function 'int main(int, const char**)':
blocks.cpp:51:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &K);
                        ^
blocks.cpp:55:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[i]);
                     ^

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 84448 KB Output is correct
2 Correct 6 ms 84448 KB Output is correct
3 Correct 3 ms 84448 KB Output is correct
4 Correct 3 ms 84448 KB Output is correct
5 Correct 0 ms 84448 KB Output is correct
6 Correct 3 ms 84448 KB Output is correct
7 Correct 6 ms 84448 KB Output is correct
8 Correct 6 ms 84448 KB Output is correct
9 Correct 3 ms 84448 KB Output is correct
10 Correct 6 ms 84448 KB Output is correct
11 Correct 6 ms 84448 KB Output is correct
12 Correct 6 ms 84448 KB Output is correct
13 Correct 6 ms 84448 KB Output is correct
14 Correct 6 ms 84448 KB Output is correct
15 Correct 6 ms 84448 KB Output is correct
16 Correct 3 ms 84448 KB Output is correct
17 Correct 3 ms 84448 KB Output is correct
18 Correct 3 ms 84448 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 84448 KB Output is correct
2 Correct 9 ms 84448 KB Output is correct
3 Correct 0 ms 84448 KB Output is correct
4 Correct 6 ms 84448 KB Output is correct
5 Correct 9 ms 84448 KB Output is correct
6 Correct 6 ms 84448 KB Output is correct
7 Correct 6 ms 84448 KB Output is correct
8 Correct 0 ms 84448 KB Output is correct
9 Correct 6 ms 84448 KB Output is correct
10 Correct 0 ms 84448 KB Output is correct
11 Correct 6 ms 84448 KB Output is correct
12 Correct 6 ms 84448 KB Output is correct
13 Correct 6 ms 84448 KB Output is correct
14 Correct 6 ms 84448 KB Output is correct
15 Correct 6 ms 84448 KB Output is correct
16 Correct 0 ms 84448 KB Output is correct
17 Correct 0 ms 84448 KB Output is correct
18 Correct 6 ms 84448 KB Output is correct
19 Correct 9 ms 84448 KB Output is correct
20 Correct 6 ms 84448 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 84448 KB Output is correct
2 Correct 6 ms 84448 KB Output is correct
3 Correct 0 ms 84448 KB Output is correct
4 Correct 6 ms 84448 KB Output is correct
5 Correct 3 ms 84448 KB Output is correct
6 Correct 9 ms 84448 KB Output is correct
7 Correct 6 ms 84448 KB Output is correct
8 Correct 13 ms 84448 KB Output is correct
9 Correct 6 ms 84448 KB Output is correct
10 Correct 3 ms 84448 KB Output is correct
11 Correct 9 ms 84448 KB Output is correct
12 Correct 6 ms 84448 KB Output is correct
13 Correct 6 ms 84448 KB Output is correct
14 Correct 0 ms 84448 KB Output is correct
15 Correct 6 ms 84448 KB Output is correct
16 Correct 6 ms 84448 KB Output is correct
17 Correct 6 ms 84448 KB Output is correct
18 Correct 0 ms 84448 KB Output is correct
19 Correct 3 ms 84448 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 84448 KB Output is correct
2 Correct 13 ms 84624 KB Output is correct
3 Correct 16 ms 84624 KB Output is correct
4 Correct 49 ms 84624 KB Output is correct
5 Correct 146 ms 84840 KB Output is correct
6 Correct 33 ms 84840 KB Output is correct
7 Correct 86 ms 84840 KB Output is correct
8 Correct 16 ms 84448 KB Output is correct
9 Correct 6 ms 84448 KB Output is correct
10 Correct 16 ms 84448 KB Output is correct
11 Correct 6 ms 84448 KB Output is correct
12 Correct 9 ms 84448 KB Output is correct
13 Correct 3 ms 84448 KB Output is correct
14 Correct 23 ms 84448 KB Output is correct
15 Correct 9 ms 84448 KB Output is correct
16 Correct 9 ms 84448 KB Output is correct
17 Correct 23 ms 84624 KB Output is correct
18 Correct 26 ms 84624 KB Output is correct
19 Correct 53 ms 84624 KB Output is correct
20 Correct 163 ms 84840 KB Output is correct
21 Correct 39 ms 84840 KB Output is correct
22 Correct 123 ms 84840 KB Output is correct
23 Correct 26 ms 84840 KB Output is correct
24 Correct 43 ms 84840 KB Output is correct
25 Correct 163 ms 84840 KB Output is correct
26 Correct 9 ms 84448 KB Output is correct
27 Correct 6 ms 84448 KB Output is correct
28 Correct 26 ms 84580 KB Output is correct
29 Correct 9 ms 84580 KB Output is correct
30 Correct 9 ms 84580 KB Output is correct
31 Correct 16 ms 85016 KB Output is correct
32 Correct 16 ms 85012 KB Output is correct
33 Correct 66 ms 85012 KB Output is correct
34 Correct 206 ms 85760 KB Output is correct
35 Correct 29 ms 85760 KB Output is correct
36 Correct 93 ms 85760 KB Output is correct
37 Correct 3 ms 84448 KB Output is correct
38 Correct 33 ms 84448 KB Output is correct
39 Correct 13 ms 84448 KB Output is correct
40 Correct 9 ms 84448 KB Output is correct
41 Correct 0 ms 84448 KB Output is correct
42 Correct 6 ms 84448 KB Output is correct