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Submission #134138

# Submission time Handle Problem Language Result Execution time Memory
134138 2019-07-22T06:41:07 Z mirbek01 K blocks (IZhO14_blocks) C++11
100 / 100
 753 ms 41444 KB 
# include <bits/stdc++.h>
 
using namespace std;
 
const int N = 1e5 + 2;
 
int n, a[N], k, dp[102][N];
int stk[N], pt, pf[N];
 
int main(){
	
	cin >> n >> k;
	
	for(int i = 1; i <= n; i ++)
		cin >> a[i];
	
	for(int i = 1; i <= n; i ++){
		dp[1][i] = max(dp[1][i - 1], a[i]);
	}
	
	for(int i = 2; i <= k; i ++){
		pt = 0;
		deque < pair <int, int> > dq;
		for(int j = i; j <= n; j ++){
			while(pt > 0 && a[ stk[pt] ] < a[j])
				pt --;
			stk[++ pt] = j;
			while(!dq.empty() && dq.back().first > dp[i - 1][j - 1])
				dq.pop_back();
			dq.push_back({dp[i - 1][j - 1], j - 1});	
			int lo = 0, hi = (int)dq.size() - 1;
			while(lo <= hi){
				int md = (lo + hi) >> 1;
				if(dq[md].second >= max(stk[pt - 1], i - 1))
					hi = md - 1;
				else 
					lo = md + 1;
			}
			pf[pt] = dq[hi + 1].first + a[j];
			if(pt > 1)
				pf[pt] = min(pf[pt - 1], pf[pt]);
			dp[i][j] = pf[pt];
		}
	}
	
	cout << dp[k][n] << endl;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 380 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 888 KB Output is correct
16 Correct 2 ms 760 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 760 KB Output is correct
19 Correct 3 ms 888 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 1528 KB Output is correct
2 Correct 27 ms 760 KB Output is correct
3 Correct 45 ms 2100 KB Output is correct
4 Correct 249 ms 14556 KB Output is correct
5 Correct 753 ms 41444 KB Output is correct
6 Correct 74 ms 3392 KB Output is correct
7 Correct 369 ms 19912 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 632 KB Output is correct
10 Correct 2 ms 632 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 57 ms 4856 KB Output is correct
15 Correct 8 ms 632 KB Output is correct
16 Correct 21 ms 1656 KB Output is correct
17 Correct 27 ms 1016 KB Output is correct
18 Correct 42 ms 2180 KB Output is correct
19 Correct 195 ms 14520 KB Output is correct
20 Correct 559 ms 40652 KB Output is correct
21 Correct 72 ms 2936 KB Output is correct
22 Correct 282 ms 19260 KB Output is correct
23 Correct 59 ms 1920 KB Output is correct
24 Correct 108 ms 5436 KB Output is correct
25 Correct 579 ms 40896 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 32 ms 4856 KB Output is correct
29 Correct 9 ms 632 KB Output is correct
30 Correct 15 ms 1656 KB Output is correct
31 Correct 27 ms 956 KB Output is correct
32 Correct 38 ms 2436 KB Output is correct
33 Correct 110 ms 14596 KB Output is correct
34 Correct 309 ms 41160 KB Output is correct
35 Correct 70 ms 3320 KB Output is correct
36 Correct 172 ms 19520 KB Output is correct
37 Correct 8 ms 636 KB Output is correct
38 Correct 65 ms 4828 KB Output is correct
39 Correct 3 ms 504 KB Output is correct
40 Correct 3 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct