oj.uz

Submission #1055351

# Submission time Handle Problem Language Result Execution time Memory
1055351 2024-08-12T17:51:50 Z vjudge1 Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 7888 KB 
#include "towers.h"
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;

int n;
vi H, Hord;

map<int, int> NorMap;

void init(int n, vi H0) {
    ::n = n;
    H = H0;
    Hord = H;
    sort(Hord.begin(), Hord.end());
    Hord.resize(unique(Hord.begin(), Hord.end()) - Hord.begin());
    for(int i = 0; i < (int)Hord.size(); ++i) 
        NorMap[Hord[i]] = i;
}

struct AIB { // max pe prefixe
    int n;
    vi V;
    AIB(int N) : n(N + 2), V(N + 2, -1) {}

    void update(int p, int v) {
        ++p;
        while(p < n) {
            V[p] = max(V[p], v);
            p += p & -p;
        }
    }

    int query(int p) {
        ++p;
        if( p < 0 ) return 0;
        int re = 0;
        while(p) {
            re = max(re, V[p]);
            p -= p & -p;
        }
        return re;
    }
};

struct maxSuf {
    int n;
    AIB A;
    maxSuf(int N) : n(N + 1), A(N + 1) {}

    void update(int p, int v) { A.update(n - p - 1, v); }
    int query(int p) { return A.query(n - p - 1); }
};

int max_towers(int l, int r, int D) {
    vi DP0(n, 1), DP1(n, 0);
    ///DP0, ult e statie. DP1 ult e turn

    AIB MP(n);
    maxSuf MS(n);
    int re = 1;

    for (int i = l; i <= r; ++i) {
        int y = H[i];
        if(Hord[0] + D <= y) { /// merita cautat
            //leg un turn la ceva mai mic
            int st = 0, dr = int(Hord.size()) - 1, mij;
            while(st < dr) {
                mij = (st + dr + 1) / 2;
                if(Hord[mij] + D <= y) st = mij;
                else dr = mij - 1;
            }
            DP1[i] = max(DP1[i], 1 + MP.query(st));
        }
        MS.update(NorMap[y], DP1[i]);
        if(Hord.back() - D >= y) {
            int st = 0, dr = int(Hord.size()) - 1, mij;
            while(st < dr) {
                mij = (st + dr) / 2;
                if(Hord[mij] - D >= y) {
                    dr = mij;
                } else st = mij + 1;
            }
            DP0[i] = max(DP0[i], MS.query(st) + 1);
        }
        MP.update(NorMap[y], DP0[i]);
        re = max(re, (DP0[i] + 1) / 2);
    }
    return re;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4043 ms 5068 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 548 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 560 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 548 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 560 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 27 ms 5208 KB Output is correct
37 Correct 43 ms 7632 KB Output is correct
38 Correct 32 ms 7624 KB Output is correct
39 Correct 34 ms 7632 KB Output is correct
40 Correct 30 ms 7632 KB Output is correct
41 Correct 68 ms 7632 KB Output is correct
42 Correct 25 ms 7632 KB Output is correct
43 Correct 31 ms 7632 KB Output is correct
44 Correct 33 ms 7788 KB Output is correct
45 Correct 19 ms 7628 KB Output is correct
46 Correct 22 ms 7632 KB Output is correct
47 Correct 51 ms 7632 KB Output is correct
48 Correct 36 ms 7632 KB Output is correct
49 Correct 34 ms 7612 KB Output is correct
50 Correct 24 ms 7628 KB Output is correct
51 Correct 28 ms 7632 KB Output is correct
52 Correct 78 ms 7856 KB Output is correct
53 Correct 76 ms 7632 KB Output is correct
54 Correct 75 ms 7632 KB Output is correct
55 Correct 42 ms 7632 KB Output is correct
56 Correct 47 ms 7632 KB Output is correct
57 Correct 61 ms 7388 KB Output is correct
58 Correct 67 ms 7632 KB Output is correct
59 Correct 72 ms 7632 KB Output is correct
60 Correct 78 ms 7624 KB Output is correct
61 Correct 73 ms 7632 KB Output is correct
62 Correct 71 ms 7624 KB Output is correct
63 Correct 74 ms 7624 KB Output is correct
64 Correct 40 ms 7632 KB Output is correct
65 Correct 35 ms 7632 KB Output is correct
66 Correct 43 ms 7888 KB Output is correct
67 Correct 37 ms 7632 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4056 ms 7816 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 4045 ms 2512 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 548 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 560 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 27 ms 5208 KB Output is correct
37 Correct 43 ms 7632 KB Output is correct
38 Correct 32 ms 7624 KB Output is correct
39 Correct 34 ms 7632 KB Output is correct
40 Correct 30 ms 7632 KB Output is correct
41 Correct 68 ms 7632 KB Output is correct
42 Correct 25 ms 7632 KB Output is correct
43 Correct 31 ms 7632 KB Output is correct
44 Correct 33 ms 7788 KB Output is correct
45 Correct 19 ms 7628 KB Output is correct
46 Correct 22 ms 7632 KB Output is correct
47 Correct 51 ms 7632 KB Output is correct
48 Correct 36 ms 7632 KB Output is correct
49 Correct 34 ms 7612 KB Output is correct
50 Correct 24 ms 7628 KB Output is correct
51 Correct 28 ms 7632 KB Output is correct
52 Correct 78 ms 7856 KB Output is correct
53 Correct 76 ms 7632 KB Output is correct
54 Correct 75 ms 7632 KB Output is correct
55 Correct 42 ms 7632 KB Output is correct
56 Correct 47 ms 7632 KB Output is correct
57 Correct 61 ms 7388 KB Output is correct
58 Correct 67 ms 7632 KB Output is correct
59 Correct 72 ms 7632 KB Output is correct
60 Correct 78 ms 7624 KB Output is correct
61 Correct 73 ms 7632 KB Output is correct
62 Correct 71 ms 7624 KB Output is correct
63 Correct 74 ms 7624 KB Output is correct
64 Correct 40 ms 7632 KB Output is correct
65 Correct 35 ms 7632 KB Output is correct
66 Correct 43 ms 7888 KB Output is correct
67 Correct 37 ms 7632 KB Output is correct
68 Execution timed out 4056 ms 7816 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 4043 ms 5068 KB Time limit exceeded
2 Halted 0 ms 0 KB -