oj.uz

Submission #753178

# Submission time Handle Problem Language Result Execution time Memory
753178 2023-06-04T18:21:17 Z Olympia K blocks (IZhO14_blocks) C++17
53 / 100
 1000 ms 1492 KB 
#include <vector>
#include <iostream>
#include <cassert>
#include <cmath>
#include <map>
#include <set>
using namespace std;
vector<int64_t> p;
struct SegmentTree {
    vector<int64_t> orig;
    vector<int64_t> vec;
    vector<int64_t> lazy;
    const int64_t INF = 1e18;
    void push (int dum, int tl, int tr) {
        if (lazy[dum] == -1) {
            return;
        }
        lazy[2 * dum + 1] = lazy[dum];
        lazy[2 * dum + 2] = lazy[dum];
        vec[2 * dum + 1] = lazy[dum] + orig[2 * dum + 1];
        vec[2 * dum + 2] = lazy[dum] + orig[2 * dum + 2];
        lazy[dum] = -1;
    }
    void upd (int dum, int tl, int tr, int l, int r, int64_t x) {
        if (tl >= l and tr <= r) {
            lazy[dum] = x;
            vec[dum] = orig[dum] + x;
            //cout << dum << " " << vec[dum] << endl;
            return;
        }
        if (tl > r or l > tr) {
            return;
        }
        push(dum, tl, tr);
        upd(2 * dum + 1, tl, (tl + tr)/2, l, r, x);
        upd(2 * dum + 2, (tl + tr)/2 + 1, tr, l, r, x);
        vec[dum] = min(vec[2 * dum + 1], vec[2 * dum + 2]);
    }
    int64_t query (int dum, int tl, int tr, int l, int r) {
        if (tl >= l and tr <= r) {
            //cout << "Q " << dum << " " << vec[dum] << endl;
            return vec[dum];
        }
        if (tl > r or l > tr) {
            return INF;
        }
        push(dum, tl, tr);
        return min(query(2 * dum + 1, tl, (tl + tr)/2, l, r), query(2 * dum + 2, (tl + tr)/2 + 1, tr, l, r));
    }
    void upd (int l, int r, int64_t x) {
        //cout << "UPDATE " << l << " " << r << " " << x << endl;
        upd(0, 0, (int)vec.size()/2 - 1, l, r, x);
    }
    int64_t query (int l, int r) {
        //cout << "QUERY " << l << " " << r << endl;
        return query(0, 0, (int)vec.size()/2 - 1, l, r);
    }
    void build (int dum, int tl, int tr) {
        if (tl == tr) {
            orig[dum] = p[tl];
            return;
        }
        build(2 * dum + 1, tl, (tl + tr)/2);
        build(2 * dum + 2, (tl + tr)/2 + 1, tr);
        orig[dum] = min(orig[2 * dum + 1], orig[2 * dum + 2]);
    }
    SegmentTree () {
        while (__builtin_popcount(p.size()) != 1) {
            p.push_back(0);
        }
        int n = p.size();
        orig.assign(2 * n, 0);
        lazy.assign(2 * n, -1);
        build(0, 0, n - 1);
        vec = orig;
    }
};
int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    /*
    p = {(int64_t)1e17, 5, 5, 8, 8, 8};
    SegmentTree st;
    st.upd(0, 0, 5);
    st.upd(1, 1, 1);
    cout << st.query(0, 0);
     */

    int N, K;
    cin >> N >> K;
    int64_t arr[N];
    for (int i = 0; i < N; i++) {
        cin >> arr[i];
    }
    int64_t INF = 1e17;
    vector<int64_t> cur(N + 1);
    p.assign(N + 1, INF), cur.assign(N + 1, INF);
    for (int j = 1; j <= N; j++) {
        p[j] = ((j == 1) ? arr[0] : max(p[j - 1], arr[j - 1]));
    }
    for (int i = 2; i <= K; i++) {
        SegmentTree val;
        //cout << "GET " << val.query(0, 0) << endl;
        for (int j = 1; j <= N; j++) {
            if (j == 1) {
                cur[j] = INF;
                int64_t myMax = 0;
                for (int l = j - 1; l >= 0; l--) {
                    myMax = max(myMax, arr[l]);
                    cur[j] = min(cur[j], p[l] + myMax);
                    val.upd(l, l, myMax);
                }
            } else {
                cur[j] = INF;
                int64_t myMax = 0;
                for (int l = j - 1; l >= 0; l--) {
                    myMax = max(myMax, arr[l]);
                    if (myMax == arr[j - 1]) {
                        cur[j] = min(cur[j], p[l] + myMax);
                        val.upd(l, l, myMax);
                    } else {
                        //cout << l << " " << p[l] << " " << myMax << " " << val.query(l, l) << endl;
                        assert(p[l] + myMax == val.query(l, l));
                        cur[j] = min(cur[j], val.query(l, l));
                    }
                }
            }
        }
        swap(cur, p);
    }
    cout << p[N];

}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 212 KB Output is correct
14 Correct 2 ms 316 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 232 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 212 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 212 KB Output is correct
14 Correct 2 ms 316 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 232 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 316 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 316 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 320 KB Output is correct
36 Correct 1 ms 316 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 24 ms 328 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 320 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 12 ms 316 KB Output is correct
52 Correct 12 ms 212 KB Output is correct
53 Correct 51 ms 308 KB Output is correct
54 Correct 48 ms 212 KB Output is correct
55 Correct 25 ms 316 KB Output is correct
56 Correct 44 ms 320 KB Output is correct
57 Correct 47 ms 212 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 316 KB Output is correct
11 Correct 1 ms 320 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 212 KB Output is correct
14 Correct 2 ms 316 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 232 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 2 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 316 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 316 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 320 KB Output is correct
36 Correct 1 ms 316 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 24 ms 328 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 320 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 12 ms 316 KB Output is correct
52 Correct 12 ms 212 KB Output is correct
53 Correct 51 ms 308 KB Output is correct
54 Correct 48 ms 212 KB Output is correct
55 Correct 25 ms 316 KB Output is correct
56 Correct 44 ms 320 KB Output is correct
57 Correct 47 ms 212 KB Output is correct
58 Execution timed out 1075 ms 1492 KB Time limit exceeded
59 Halted 0 ms 0 KB -