Submission #5734

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
5734	2014-05-15T02:29:18 Z	kriii	K blocks (IZhO14_blocks)	C++	0 / 100	40 ms	2408 KB

blocks

#include <stdio.h>
#include <stack>
using namespace std;

int N,K,A[100001],prv[100001],nxt[100001];

int main()
{
	scanf ("%d %d",&N,&K);

	for (int i=1;i<=N;i++){
		scanf ("%d",&A[i]);
		prv[i] = 0x3fffffff;
	}

	for (int j=1;j<=K;j++){
		stack<pair<int, int> > S;
		for (int i=j;i<=N;i++){
			int last = prv[i-1];
			while (!S.empty() && S.top().second <= A[i]){
				last = S.top().first;
				S.pop();
			}
			if (S.empty() || S.top().first + S.top().second > last + A[i])
				S.push(make_pair(last,A[i]));
			nxt[i] = S.top().first + S.top().second;
		}
		for (int i=j;i<=N;i++) prv[i] = nxt[i];
	}

	printf ("%d\n",prv[N]);

	return 0;
}

Subtask #1

0.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	2408 KB	Output is correct
2	Correct	0 ms	2408 KB	Output is correct
3	Correct	0 ms	2408 KB	Output is correct
4	Correct	0 ms	2408 KB	Output is correct
5	Correct	0 ms	2408 KB	Output is correct
6	Correct	0 ms	2408 KB	Output is correct
7	Correct	0 ms	2408 KB	Output is correct
8	Correct	0 ms	2408 KB	Output is correct
9	Correct	0 ms	2408 KB	Output is correct
10	Correct	0 ms	2408 KB	Output is correct
11	Incorrect	0 ms	2408 KB	Output isn't correct
12	Halted	0 ms	0 KB	-

Subtask #2

0.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	2408 KB	Output is correct
2	Correct	0 ms	2408 KB	Output is correct
3	Correct	0 ms	2408 KB	Output is correct
4	Correct	0 ms	2408 KB	Output is correct
5	Correct	0 ms	2408 KB	Output is correct
6	Correct	0 ms	2408 KB	Output is correct
7	Correct	0 ms	2408 KB	Output is correct
8	Correct	0 ms	2408 KB	Output is correct
9	Correct	0 ms	2408 KB	Output is correct
10	Correct	0 ms	2408 KB	Output is correct
11	Incorrect	0 ms	2408 KB	Output isn't correct
12	Halted	0 ms	0 KB	-

Subtask #3

0.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	2408 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #4

0.0 / 47.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	2408 KB	Output is correct
2	Correct	4 ms	2408 KB	Output is correct
3	Correct	8 ms	2408 KB	Output is correct
4	Incorrect	40 ms	2408 KB	Output isn't correct
5	Halted	0 ms	0 KB	-