oj.uz

Submission #239527

# Submission time Handle Problem Language Result Execution time Memory
239527 2020-06-16T07:00:05 Z Fischer K blocks (IZhO14_blocks) C++14
100 / 100
 212 ms 3636 KB 
/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author Miguel Mini
 */

#include <string>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <queue>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstring>
#include <stack>
#define sz(x) (int)x.size()
#define trav(v, x) for (auto v : x)
#define re(x, y, z) for (int x=y; x<z; ++x)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define set_to(x, v) fill(all(x), v)
#define eb emplace_back
#define lso(x) ((x)&-(x))
#define mset(m ,v) memset(m, v, sizeof(m))
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
using vii = vector<ii>;
const int mod = 1e9 + 7;
const ll inf = 1.e18;
const int maxn = 1e5 + 10;
int a[maxn];
ll dp[maxn][2];

class IZHO_14_blocks {
public:
    void solveOne(istream& in, ostream& out) {
      int n, k;
      in >> n >> k;
      re(i, 0, n) {
        in >> a[i];
      }
      for (int i = 0; i < n; ++i) {
        dp[i][1] = i == 0 ? a[i] : max(0ll + a[i], dp[i-1][1]);
      }
      for (int i = 2; i <= k; ++i) {
        stack<ll> s1({inf});
        stack<ll> s2({inf});
        ll temp = inf;
        for (int j = 0; j < n; ++j) {
          while (!s1.empty() && s1.top() <= a[j]) {
            temp = min(temp, s2.top() - s1.top());
            s1.pop();
            s2.pop();
          }
          s1.push(a[j]);
          s2.push(min(s2.top(), a[j] + temp));
          temp = dp[j][(i&1)^1];
          dp[j][i&1] = s2.top();
        }
      }
      out << dp[n-1][k&1] << endl;
    }

    void solve(istream& in, ostream& out) {
        int testNumber = 1;
        //in >> testNumber;
        re(tc, 1, testNumber+1) {
            //out << "Case #" << tc << ": ";
            solveOne(in, out);
        }
    }
};


int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
	IZHO_14_blocks solver;
	std::istream& in(std::cin);
	std::ostream& out(std::cout);
	solver.solve(in, out);
	return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 6 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 512 KB Output is correct
2 Correct 10 ms 1536 KB Output is correct
3 Correct 14 ms 1536 KB Output is correct
4 Correct 56 ms 1536 KB Output is correct
5 Correct 160 ms 3064 KB Output is correct
6 Correct 20 ms 2944 KB Output is correct
7 Correct 78 ms 3072 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 404 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 23 ms 640 KB Output is correct
15 Correct 7 ms 640 KB Output is correct
16 Correct 10 ms 640 KB Output is correct
17 Correct 11 ms 1536 KB Output is correct
18 Correct 16 ms 1536 KB Output is correct
19 Correct 76 ms 1536 KB Output is correct
20 Correct 207 ms 3064 KB Output is correct
21 Correct 21 ms 2944 KB Output is correct
22 Correct 101 ms 2944 KB Output is correct
23 Correct 18 ms 2944 KB Output is correct
24 Correct 34 ms 2944 KB Output is correct
25 Correct 212 ms 2944 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 20 ms 768 KB Output is correct
29 Correct 6 ms 640 KB Output is correct
30 Correct 9 ms 640 KB Output is correct
31 Correct 10 ms 1536 KB Output is correct
32 Correct 15 ms 1792 KB Output is correct
33 Correct 66 ms 1832 KB Output is correct
34 Correct 187 ms 3612 KB Output is correct
35 Correct 21 ms 3636 KB Output is correct
36 Correct 94 ms 3608 KB Output is correct
37 Correct 6 ms 640 KB Output is correct
38 Correct 20 ms 640 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 4 ms 384 KB Output is correct
42 Correct 4 ms 384 KB Output is correct