oj.uz

Submission #1022882

# Submission time Handle Problem Language Result Execution time Memory
1022882 2024-07-14T07:08:14 Z mansur Radio Towers (IOI22_towers) C++17
15 / 100
 4000 ms 1604 KB 
#include "towers.h"
#include<bits/stdc++.h>

using namespace std;

#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int)s.size()
#define s second 
#define f first 

using ll = long long;
using pii = pair<int, int>; 
using pll = pair<ll, ll>;

vector<int> h;
int n, k, ok = 1;
const int inf = 1e9;

void init(int N, vector<int> H) {
    n = N, h = H;
    k = n - 1;
    for (int i = 1; i < n; i++) {
        if (h[i] < h[i - 1]) {
            k = i - 1;
            break;
        }
    }
    for (int i = 1; i < k; i++) {
        if (h[i - 1] > h[i]) ok = 0;
    }
    for (int i = k + 1; i < n; i++) {
        if (h[i - 1] < h[i]) ok = 0;
    }
}

int f(int l, int r, int d, int mx) {
    if (r < l) return 0;
    if (l == r) return (h[l] <= mx);
    int pos = l, is = 0;
    for (int i = l; i <= r; i++) {
        if (h[i] > h[pos]) pos = i;
        if (h[i] <= mx) is = 1;
    }
    if (!is) return 0;
    if (pos == l) return f(l + 1, r, d, mx);
    if (pos == r) return f(l, r - 1, d, mx);
    return max(1, f(l, pos - 1, d, min(mx, h[pos] - d)) + f(pos + 1, r, d, min(mx, h[pos] - d)));
}

int max_towers(int l, int r, int d) {
    if (ok) {
        if (k == -1) return 1;
        if (k <= l || r <= k) return 1;
        if (h[l] > h[k] - d || h[r] > h[k] - d) return 1;
        return 2;
    }
    return f(l, r, d, inf);
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 326 ms 1112 KB Output is correct
2 Correct 677 ms 1368 KB Output is correct
3 Correct 666 ms 1368 KB Output is correct
4 Correct 727 ms 1368 KB Output is correct
5 Correct 671 ms 1368 KB Output is correct
6 Correct 658 ms 1368 KB Output is correct
7 Correct 648 ms 1596 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct

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 0 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 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 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 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 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 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 4 ms 452 KB Output is correct
35 Correct 5 ms 344 KB Output is correct

Subtask #3
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 0 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 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 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 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 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 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 4 ms 452 KB Output is correct
35 Correct 5 ms 344 KB Output is correct
36 Correct 7 ms 1112 KB Output is correct
37 Correct 12 ms 1368 KB Output is correct
38 Correct 10 ms 1596 KB Output is correct
39 Correct 10 ms 1368 KB Output is correct
40 Correct 9 ms 1592 KB Output is correct
41 Correct 13 ms 1368 KB Output is correct
42 Correct 9 ms 1368 KB Output is correct
43 Correct 16 ms 1368 KB Output is correct
44 Correct 8 ms 1368 KB Output is correct
45 Correct 17 ms 1368 KB Output is correct
46 Correct 11 ms 1368 KB Output is correct
47 Correct 13 ms 1368 KB Output is correct
48 Correct 10 ms 1368 KB Output is correct
49 Correct 9 ms 1600 KB Output is correct
50 Correct 11 ms 1368 KB Output is correct
51 Correct 2021 ms 1368 KB Output is correct
52 Correct 17 ms 1368 KB Output is correct
53 Correct 14 ms 1368 KB Output is correct
54 Correct 14 ms 1604 KB Output is correct
55 Correct 9 ms 1368 KB Output is correct
56 Execution timed out 4093 ms 1364 KB Time limit exceeded
57 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4025 ms 1368 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 4077 ms 600 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 0 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 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 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 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 5 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 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 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 4 ms 452 KB Output is correct
35 Correct 5 ms 344 KB Output is correct
36 Correct 7 ms 1112 KB Output is correct
37 Correct 12 ms 1368 KB Output is correct
38 Correct 10 ms 1596 KB Output is correct
39 Correct 10 ms 1368 KB Output is correct
40 Correct 9 ms 1592 KB Output is correct
41 Correct 13 ms 1368 KB Output is correct
42 Correct 9 ms 1368 KB Output is correct
43 Correct 16 ms 1368 KB Output is correct
44 Correct 8 ms 1368 KB Output is correct
45 Correct 17 ms 1368 KB Output is correct
46 Correct 11 ms 1368 KB Output is correct
47 Correct 13 ms 1368 KB Output is correct
48 Correct 10 ms 1368 KB Output is correct
49 Correct 9 ms 1600 KB Output is correct
50 Correct 11 ms 1368 KB Output is correct
51 Correct 2021 ms 1368 KB Output is correct
52 Correct 17 ms 1368 KB Output is correct
53 Correct 14 ms 1368 KB Output is correct
54 Correct 14 ms 1604 KB Output is correct
55 Correct 9 ms 1368 KB Output is correct
56 Execution timed out 4093 ms 1364 KB Time limit exceeded
57 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 326 ms 1112 KB Output is correct
2 Correct 677 ms 1368 KB Output is correct
3 Correct 666 ms 1368 KB Output is correct
4 Correct 727 ms 1368 KB Output is correct
5 Correct 671 ms 1368 KB Output is correct
6 Correct 658 ms 1368 KB Output is correct
7 Correct 648 ms 1596 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 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 344 KB Output is correct
16 Correct 0 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 1 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 0 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 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 0 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 5 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 4 ms 452 KB Output is correct
45 Correct 5 ms 344 KB Output is correct
46 Correct 7 ms 1112 KB Output is correct
47 Correct 12 ms 1368 KB Output is correct
48 Correct 10 ms 1596 KB Output is correct
49 Correct 10 ms 1368 KB Output is correct
50 Correct 9 ms 1592 KB Output is correct
51 Correct 13 ms 1368 KB Output is correct
52 Correct 9 ms 1368 KB Output is correct
53 Correct 16 ms 1368 KB Output is correct
54 Correct 8 ms 1368 KB Output is correct
55 Correct 17 ms 1368 KB Output is correct
56 Correct 11 ms 1368 KB Output is correct
57 Correct 13 ms 1368 KB Output is correct
58 Correct 10 ms 1368 KB Output is correct
59 Correct 9 ms 1600 KB Output is correct
60 Correct 11 ms 1368 KB Output is correct
61 Correct 2021 ms 1368 KB Output is correct
62 Correct 17 ms 1368 KB Output is correct
63 Correct 14 ms 1368 KB Output is correct
64 Correct 14 ms 1604 KB Output is correct
65 Correct 9 ms 1368 KB Output is correct
66 Execution timed out 4093 ms 1364 KB Time limit exceeded
67 Halted 0 ms 0 KB -