oj.uz

Submission #825003

# Submission time Handle Problem Language Result Execution time Memory
825003 2023-08-14T13:07:14 Z PixelCat Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 4632 KB 
#include "towers.h"

#ifdef NYAOWO
#include "stub.cpp"
#endif

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
#define Forr(i, a, b) for(int i = a; i >= b; i--)
#define F first
#define S second 
#define all(x) x.begin(), x.end()
#define sz(x) ((int)x.size())
#define eb emplace_back
// #define int LL
using namespace std;
using i32 = int32_t;
using LL = long long;
using pii = pair<int, int>;

inline void chmax(int &x, int val) { x = max(x, val); }

const int MAXN = 100'000;

#define L(id) ((id) * 2 + 1)
#define R(id) ((id) * 2 + 2)
struct SegTree {
    int mx[MAXN * 4 + 10];
    void build() {
        memset(mx, 0, sizeof(mx));
    }
    void upd(int id, int l, int r, int pos, int val) {
        if(l == r) {
            chmax(mx[id], val);
            return;
        }
        int m = (l + r) / 2;
        if(pos <= m) upd(L(id), l, m, pos, val);
        else         upd(R(id), m + 1, r, pos, val);
        mx[id] = max(mx[L(id)], mx[R(id)]);
    }
    int range_max(int id, int l, int r, int L, int R) {
        if(L > R) return 0;
        if(l >= L && r <= R) {
            return mx[id];
        }
        int m = (l + r) / 2;
        int res = 0;
        if(L <= m) chmax(res, range_max(L(id), l, m, L, R));
        if(R > m)  chmax(res, range_max(R(id), m + 1, r, L, R));
        return res;
    }
} dp1, dp2;

int n;
int h[MAXN + 10];
int vals[MAXN + 10];

void init(int N, std::vector<int> H) {
    n = N;
    For(i, 0, n - 1) {
        h[i] = H[i];
        vals[i] = h[i];
    }
    sort(vals, vals + n);
}

int max_towers(int L, int R, int D) {
    int ans = 0;
    dp1.build();
    dp2.build();
    For(i, L, R) {
        int p = (int)(lower_bound(vals, vals + n, h[i]) - vals);
        int l = (int)(upper_bound(vals, vals + n, h[i] - D) - vals) - 1;
        int r = (int)(lower_bound(vals, vals + n, h[i] + D) - vals);
        int v1 = dp2.range_max(0, 0, n - 1, r, n - 1) + 1;
        int v2 = dp1.range_max(0, 0, n - 1, 0, l);
        dp1.upd(0, 0, n - 1, p, v1);
        dp2.upd(0, 0, n - 1, p, v2);
        chmax(ans, v1);
    }
    return ans;
}

/*

7 3
10 20 60 40 50 30 70
1 5 10
2 2 100
0 6 17

3
1
2

*/

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4025 ms 4068 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3408 KB Output is correct
2 Correct 2 ms 3408 KB Output is correct
3 Correct 2 ms 3408 KB Output is correct
4 Correct 2 ms 3392 KB Output is correct
5 Correct 2 ms 3408 KB Output is correct
6 Correct 2 ms 3408 KB Output is correct
7 Correct 2 ms 3408 KB Output is correct
8 Correct 1 ms 3408 KB Output is correct
9 Correct 2 ms 3408 KB Output is correct
10 Correct 2 ms 3408 KB Output is correct
11 Correct 1 ms 3408 KB Output is correct
12 Correct 1 ms 3408 KB Output is correct
13 Correct 2 ms 3408 KB Output is correct
14 Correct 2 ms 3408 KB Output is correct
15 Correct 2 ms 3408 KB Output is correct
16 Correct 2 ms 3408 KB Output is correct
17 Correct 2 ms 3408 KB Output is correct
18 Correct 2 ms 3408 KB Output is correct
19 Correct 2 ms 3384 KB Output is correct
20 Correct 4 ms 3460 KB Output is correct
21 Correct 2 ms 3408 KB Output is correct
22 Correct 3 ms 3408 KB Output is correct
23 Correct 2 ms 3408 KB Output is correct
24 Correct 2 ms 3408 KB Output is correct
25 Correct 2 ms 3408 KB Output is correct
26 Correct 2 ms 3408 KB Output is correct
27 Correct 2 ms 3408 KB Output is correct
28 Correct 2 ms 3408 KB Output is correct
29 Correct 2 ms 3408 KB Output is correct
30 Correct 2 ms 3408 KB Output is correct
31 Correct 2 ms 3444 KB Output is correct
32 Correct 2 ms 3408 KB Output is correct
33 Correct 2 ms 3408 KB Output is correct
34 Correct 2 ms 3408 KB Output is correct
35 Correct 2 ms 3408 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3408 KB Output is correct
2 Correct 2 ms 3408 KB Output is correct
3 Correct 2 ms 3408 KB Output is correct
4 Correct 2 ms 3392 KB Output is correct
5 Correct 2 ms 3408 KB Output is correct
6 Correct 2 ms 3408 KB Output is correct
7 Correct 2 ms 3408 KB Output is correct
8 Correct 1 ms 3408 KB Output is correct
9 Correct 2 ms 3408 KB Output is correct
10 Correct 2 ms 3408 KB Output is correct
11 Correct 1 ms 3408 KB Output is correct
12 Correct 1 ms 3408 KB Output is correct
13 Correct 2 ms 3408 KB Output is correct
14 Correct 2 ms 3408 KB Output is correct
15 Correct 2 ms 3408 KB Output is correct
16 Correct 2 ms 3408 KB Output is correct
17 Correct 2 ms 3408 KB Output is correct
18 Correct 2 ms 3408 KB Output is correct
19 Correct 2 ms 3384 KB Output is correct
20 Correct 4 ms 3460 KB Output is correct
21 Correct 2 ms 3408 KB Output is correct
22 Correct 3 ms 3408 KB Output is correct
23 Correct 2 ms 3408 KB Output is correct
24 Correct 2 ms 3408 KB Output is correct
25 Correct 2 ms 3408 KB Output is correct
26 Correct 2 ms 3408 KB Output is correct
27 Correct 2 ms 3408 KB Output is correct
28 Correct 2 ms 3408 KB Output is correct
29 Correct 2 ms 3408 KB Output is correct
30 Correct 2 ms 3408 KB Output is correct
31 Correct 2 ms 3444 KB Output is correct
32 Correct 2 ms 3408 KB Output is correct
33 Correct 2 ms 3408 KB Output is correct
34 Correct 2 ms 3408 KB Output is correct
35 Correct 2 ms 3408 KB Output is correct
36 Correct 24 ms 4176 KB Output is correct
37 Correct 39 ms 4596 KB Output is correct
38 Correct 29 ms 4544 KB Output is correct
39 Correct 28 ms 4528 KB Output is correct
40 Correct 24 ms 4512 KB Output is correct
41 Correct 69 ms 4512 KB Output is correct
42 Correct 18 ms 4572 KB Output is correct
43 Correct 30 ms 4592 KB Output is correct
44 Correct 20 ms 4528 KB Output is correct
45 Correct 12 ms 4520 KB Output is correct
46 Correct 12 ms 4524 KB Output is correct
47 Correct 48 ms 4496 KB Output is correct
48 Correct 31 ms 4540 KB Output is correct
49 Correct 28 ms 4592 KB Output is correct
50 Correct 20 ms 4592 KB Output is correct
51 Correct 28 ms 4544 KB Output is correct
52 Correct 95 ms 4596 KB Output is correct
53 Correct 92 ms 4592 KB Output is correct
54 Correct 101 ms 4544 KB Output is correct
55 Correct 55 ms 4512 KB Output is correct
56 Correct 57 ms 4600 KB Output is correct
57 Correct 69 ms 4560 KB Output is correct
58 Correct 73 ms 4512 KB Output is correct
59 Correct 84 ms 4556 KB Output is correct
60 Correct 95 ms 4544 KB Output is correct
61 Correct 86 ms 4592 KB Output is correct
62 Correct 80 ms 4592 KB Output is correct
63 Correct 85 ms 4596 KB Output is correct
64 Correct 41 ms 4544 KB Output is correct
65 Correct 39 ms 4632 KB Output is correct
66 Correct 53 ms 4596 KB Output is correct
67 Correct 40 ms 4544 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4006 ms 4556 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4096 ms 3792 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3408 KB Output is correct
2 Correct 2 ms 3408 KB Output is correct
3 Correct 2 ms 3408 KB Output is correct
4 Correct 2 ms 3392 KB Output is correct
5 Correct 2 ms 3408 KB Output is correct
6 Correct 2 ms 3408 KB Output is correct
7 Correct 2 ms 3408 KB Output is correct
8 Correct 1 ms 3408 KB Output is correct
9 Correct 2 ms 3408 KB Output is correct
10 Correct 2 ms 3408 KB Output is correct
11 Correct 1 ms 3408 KB Output is correct
12 Correct 1 ms 3408 KB Output is correct
13 Correct 2 ms 3408 KB Output is correct
14 Correct 2 ms 3408 KB Output is correct
15 Correct 2 ms 3408 KB Output is correct
16 Correct 2 ms 3408 KB Output is correct
17 Correct 2 ms 3408 KB Output is correct
18 Correct 2 ms 3408 KB Output is correct
19 Correct 2 ms 3384 KB Output is correct
20 Correct 4 ms 3460 KB Output is correct
21 Correct 2 ms 3408 KB Output is correct
22 Correct 3 ms 3408 KB Output is correct
23 Correct 2 ms 3408 KB Output is correct
24 Correct 2 ms 3408 KB Output is correct
25 Correct 2 ms 3408 KB Output is correct
26 Correct 2 ms 3408 KB Output is correct
27 Correct 2 ms 3408 KB Output is correct
28 Correct 2 ms 3408 KB Output is correct
29 Correct 2 ms 3408 KB Output is correct
30 Correct 2 ms 3408 KB Output is correct
31 Correct 2 ms 3444 KB Output is correct
32 Correct 2 ms 3408 KB Output is correct
33 Correct 2 ms 3408 KB Output is correct
34 Correct 2 ms 3408 KB Output is correct
35 Correct 2 ms 3408 KB Output is correct
36 Correct 24 ms 4176 KB Output is correct
37 Correct 39 ms 4596 KB Output is correct
38 Correct 29 ms 4544 KB Output is correct
39 Correct 28 ms 4528 KB Output is correct
40 Correct 24 ms 4512 KB Output is correct
41 Correct 69 ms 4512 KB Output is correct
42 Correct 18 ms 4572 KB Output is correct
43 Correct 30 ms 4592 KB Output is correct
44 Correct 20 ms 4528 KB Output is correct
45 Correct 12 ms 4520 KB Output is correct
46 Correct 12 ms 4524 KB Output is correct
47 Correct 48 ms 4496 KB Output is correct
48 Correct 31 ms 4540 KB Output is correct
49 Correct 28 ms 4592 KB Output is correct
50 Correct 20 ms 4592 KB Output is correct
51 Correct 28 ms 4544 KB Output is correct
52 Correct 95 ms 4596 KB Output is correct
53 Correct 92 ms 4592 KB Output is correct
54 Correct 101 ms 4544 KB Output is correct
55 Correct 55 ms 4512 KB Output is correct
56 Correct 57 ms 4600 KB Output is correct
57 Correct 69 ms 4560 KB Output is correct
58 Correct 73 ms 4512 KB Output is correct
59 Correct 84 ms 4556 KB Output is correct
60 Correct 95 ms 4544 KB Output is correct
61 Correct 86 ms 4592 KB Output is correct
62 Correct 80 ms 4592 KB Output is correct
63 Correct 85 ms 4596 KB Output is correct
64 Correct 41 ms 4544 KB Output is correct
65 Correct 39 ms 4632 KB Output is correct
66 Correct 53 ms 4596 KB Output is correct
67 Correct 40 ms 4544 KB Output is correct
68 Execution timed out 4006 ms 4556 KB Time limit exceeded
69 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4025 ms 4068 KB Time limit exceeded
2 Halted 0 ms 0 KB -