Submission #146384

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
146384	2019-08-23T16:14:34 Z	abacaba	K blocks (IZhO14_blocks)	C++14	100 / 100	240 ms	2028 KB

blocks

#include <iostream>
#include <string>
#include <cstring>
#include <vector>
#include <map>
#include <algorithm>
#include <math.h>
#include <utility>
#include <set>
#include <time.h>
#include <list>
#include <typeinfo>
#include <cstdio>
#include <numeric>
#include <stack>
#include <stdio.h>
using namespace std;
 
#define max3(a, b, c) max(a, max(b, c))
#define min3(a, b, c) min(a, min(b, c))
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define ppb pop_back
#define ll long long
#define ull unsigned long long
#define cntbit(x) __builtin_popcount(x)
#define endl '\n'
#define uset unordered_set
#define umap unordered_map
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>

const int inf = 2e9;
const int N = 1e5 + 15;
const int K = 115;
int n, k, a[N], dp[2][N], maxx;
stack <int> s[2];

int main() {
	for(int i = 0; i < 2; ++i)
		for(int j = 0; j < N; ++j)
			dp[i][j] = inf;
	cin >> n >> k;
	for(int i = 1; i <= n; ++i) {
		cin >> a[i];
		maxx = max(maxx, a[i]);
		dp[1][i] = maxx;
	}
	for(int i = 2; i <= k; ++i) {
		while(!s[0].empty())
			s[0].pop(), s[1].pop();
		for(int j = 0; j < N; ++j)
			dp[i & 1][j] = inf;
		for(int j = 1; j <= n; ++j) {
			int cur = dp[(i - 1) & 1][j - 1];
			while(!s[0].empty() && s[0].top() < a[j]) {
				cur = min(cur, s[1].top());
				s[0].pop(), s[1].pop();
			}
			if(s[0].empty() || s[0].top() + s[1].top() > cur + a[j])
				s[0].push(a[j]), s[1].push(cur);

			if(j >= i)
				dp[i & 1][j] = s[0].top() + s[1].top();
		}
	}
	cout << dp[k & 1][n] << endl;
	return 0;
}

Subtask #1
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1144 KB	Output is correct
3	Correct	3 ms	1144 KB	Output is correct
4	Correct	3 ms	1144 KB	Output is correct
5	Correct	3 ms	1144 KB	Output is correct
6	Correct	3 ms	1144 KB	Output is correct
7	Correct	3 ms	1144 KB	Output is correct
8	Correct	3 ms	1144 KB	Output is correct
9	Correct	3 ms	1144 KB	Output is correct
10	Correct	3 ms	1148 KB	Output is correct
11	Correct	3 ms	1144 KB	Output is correct
12	Correct	3 ms	1144 KB	Output is correct
13	Correct	3 ms	1144 KB	Output is correct
14	Correct	3 ms	1144 KB	Output is correct
15	Correct	3 ms	1144 KB	Output is correct
16	Correct	3 ms	1144 KB	Output is correct
17	Correct	3 ms	1144 KB	Output is correct
18	Correct	3 ms	1144 KB	Output is correct

Subtask #2
18.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1148 KB	Output is correct
3	Correct	4 ms	1144 KB	Output is correct
4	Correct	3 ms	1144 KB	Output is correct
5	Correct	1 ms	1144 KB	Output is correct
6	Correct	3 ms	1144 KB	Output is correct
7	Correct	3 ms	1144 KB	Output is correct
8	Correct	3 ms	1144 KB	Output is correct
9	Correct	3 ms	1144 KB	Output is correct
10	Correct	3 ms	1144 KB	Output is correct
11	Correct	3 ms	1144 KB	Output is correct
12	Correct	3 ms	1144 KB	Output is correct
13	Correct	3 ms	1060 KB	Output is correct
14	Correct	3 ms	1144 KB	Output is correct
15	Correct	3 ms	1172 KB	Output is correct
16	Correct	4 ms	1144 KB	Output is correct
17	Correct	4 ms	1144 KB	Output is correct
18	Correct	3 ms	1144 KB	Output is correct
19	Correct	4 ms	1144 KB	Output is correct
20	Correct	4 ms	1144 KB	Output is correct

Subtask #3
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1144 KB	Output is correct
2	Correct	3 ms	1144 KB	Output is correct
3	Correct	4 ms	1144 KB	Output is correct
4	Correct	3 ms	1144 KB	Output is correct
5	Correct	3 ms	1148 KB	Output is correct
6	Correct	3 ms	1144 KB	Output is correct
7	Correct	3 ms	1144 KB	Output is correct
8	Correct	3 ms	1144 KB	Output is correct
9	Correct	3 ms	1144 KB	Output is correct
10	Correct	3 ms	1148 KB	Output is correct
11	Correct	3 ms	1144 KB	Output is correct
12	Correct	3 ms	1144 KB	Output is correct
13	Correct	4 ms	1144 KB	Output is correct
14	Correct	4 ms	1144 KB	Output is correct
15	Correct	8 ms	1144 KB	Output is correct
16	Correct	8 ms	1144 KB	Output is correct
17	Correct	6 ms	1144 KB	Output is correct
18	Correct	9 ms	1144 KB	Output is correct
19	Correct	8 ms	1144 KB	Output is correct

Subtask #4
47.0 / 47.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	1144 KB	Output is correct
2	Correct	28 ms	1272 KB	Output is correct
3	Correct	31 ms	1272 KB	Output is correct
4	Correct	68 ms	1400 KB	Output is correct
5	Correct	169 ms	1572 KB	Output is correct
6	Correct	61 ms	1528 KB	Output is correct
7	Correct	108 ms	1528 KB	Output is correct
8	Correct	4 ms	1144 KB	Output is correct
9	Correct	5 ms	1144 KB	Output is correct
10	Correct	5 ms	1144 KB	Output is correct
11	Correct	6 ms	1144 KB	Output is correct
12	Correct	3 ms	1144 KB	Output is correct
13	Correct	4 ms	1144 KB	Output is correct
14	Correct	26 ms	1148 KB	Output is correct
15	Correct	8 ms	1144 KB	Output is correct
16	Correct	12 ms	1144 KB	Output is correct
17	Correct	27 ms	1272 KB	Output is correct
18	Correct	31 ms	1276 KB	Output is correct
19	Correct	65 ms	1272 KB	Output is correct
20	Correct	155 ms	1528 KB	Output is correct
21	Correct	61 ms	1500 KB	Output is correct
22	Correct	102 ms	1528 KB	Output is correct
23	Correct	59 ms	1532 KB	Output is correct
24	Correct	72 ms	1528 KB	Output is correct
25	Correct	162 ms	1528 KB	Output is correct
26	Correct	3 ms	1148 KB	Output is correct
27	Correct	4 ms	1144 KB	Output is correct
28	Correct	31 ms	1144 KB	Output is correct
29	Correct	9 ms	1144 KB	Output is correct
30	Correct	15 ms	1272 KB	Output is correct
31	Correct	28 ms	1272 KB	Output is correct
32	Correct	35 ms	1372 KB	Output is correct
33	Correct	90 ms	1400 KB	Output is correct
34	Correct	240 ms	2028 KB	Output is correct
35	Correct	64 ms	1784 KB	Output is correct
36	Correct	138 ms	1784 KB	Output is correct
37	Correct	9 ms	1144 KB	Output is correct
38	Correct	26 ms	1144 KB	Output is correct
39	Correct	4 ms	1144 KB	Output is correct
40	Correct	3 ms	1144 KB	Output is correct
41	Correct	3 ms	1144 KB	Output is correct
42	Correct	3 ms	1144 KB	Output is correct

Submission #146384

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 18.0 / 18.0

Subtask #3 21.0 / 21.0

Subtask #4 47.0 / 47.0

Subtask #1
14.0 / 14.0

Subtask #2
18.0 / 18.0

Subtask #3
21.0 / 21.0

Subtask #4
47.0 / 47.0