oj.uz

Submission #689645

# Submission time Handle Problem Language Result Execution time Memory
689645 2023-01-29T03:56:01 Z lohacho Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 13032 KB 
#include "towers.h"

#include <bits/stdc++.h>
using namespace std;

int n;
vector<int> a;

void init(int N, std::vector<int> H) {
    n = N;
    a = H;
}

int max_towers(int L, int R, int D) {
    vector<vector<int>> srt;
    for(int i = L; i <= R; ++i){
        srt.push_back({a[i], i});
    }

    sort(srt.begin(), srt.end());

    vector<vector<int>> ran;
    for(int i = 0; i < (int)srt.size(); ++i){
        int now = srt[i][1];

        int r = now + 1, can = 1;
        while(r <= R && a[r] < a[now] + D){
            ++r;
        }

        int l = now - 1;
        while(l >= L && a[l] < a[now] + D){
            --l;
        }

        ran.push_back({l + 1, r - 1});
    }

    sort(ran.begin(), ran.end(), [&](vector<int>&x, vector<int>&y){return x[1] < y[1];});

    int ans = 0, mx = -1;
    for(int i = 0; i < (int)ran.size(); ++i){
        if(ran[i][0] > mx){
            ++ans;
            mx = ran[i][1];
        }
    }

    return ans;
}

Compilation message

towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:26:26: warning: unused variable 'can' [-Wunused-variable]
   26 |         int r = now + 1, can = 1;
      |                          ^~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4054 ms 6484 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 464 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 464 KB Output is correct
21 Correct 1 ms 464 KB Output is correct
22 Correct 1 ms 464 KB Output is correct
23 Correct 3 ms 464 KB Output is correct
24 Correct 1 ms 464 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 3 ms 464 KB Output is correct
27 Correct 2 ms 464 KB Output is correct
28 Correct 2 ms 464 KB Output is correct
29 Correct 2 ms 464 KB Output is correct
30 Correct 2 ms 464 KB Output is correct
31 Correct 2 ms 424 KB Output is correct
32 Correct 2 ms 464 KB Output is correct
33 Correct 2 ms 464 KB Output is correct
34 Correct 3 ms 464 KB Output is correct
35 Correct 2 ms 464 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 464 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 464 KB Output is correct
21 Correct 1 ms 464 KB Output is correct
22 Correct 1 ms 464 KB Output is correct
23 Correct 3 ms 464 KB Output is correct
24 Correct 1 ms 464 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 3 ms 464 KB Output is correct
27 Correct 2 ms 464 KB Output is correct
28 Correct 2 ms 464 KB Output is correct
29 Correct 2 ms 464 KB Output is correct
30 Correct 2 ms 464 KB Output is correct
31 Correct 2 ms 424 KB Output is correct
32 Correct 2 ms 464 KB Output is correct
33 Correct 2 ms 464 KB Output is correct
34 Correct 3 ms 464 KB Output is correct
35 Correct 2 ms 464 KB Output is correct
36 Correct 22 ms 3148 KB Output is correct
37 Correct 362 ms 5572 KB Output is correct
38 Correct 42 ms 2592 KB Output is correct
39 Correct 354 ms 4548 KB Output is correct
40 Correct 33 ms 2524 KB Output is correct
41 Correct 1272 ms 11172 KB Output is correct
42 Correct 12 ms 1352 KB Output is correct
43 Correct 731 ms 6872 KB Output is correct
44 Correct 75 ms 2596 KB Output is correct
45 Correct 13 ms 1360 KB Output is correct
46 Correct 12 ms 1360 KB Output is correct
47 Correct 26 ms 5656 KB Output is correct
48 Correct 19 ms 3592 KB Output is correct
49 Correct 22 ms 1856 KB Output is correct
50 Correct 101 ms 3668 KB Output is correct
51 Correct 293 ms 5916 KB Output is correct
52 Correct 61 ms 12432 KB Output is correct
53 Correct 61 ms 12424 KB Output is correct
54 Correct 66 ms 12448 KB Output is correct
55 Correct 1753 ms 12596 KB Output is correct
56 Correct 1617 ms 12424 KB Output is correct
57 Correct 2183 ms 12188 KB Output is correct
58 Correct 1564 ms 12432 KB Output is correct
59 Correct 901 ms 12436 KB Output is correct
60 Correct 101 ms 12500 KB Output is correct
61 Correct 858 ms 12608 KB Output is correct
62 Correct 1471 ms 12408 KB Output is correct
63 Correct 812 ms 12492 KB Output is correct
64 Correct 3006 ms 12408 KB Output is correct
65 Correct 3090 ms 12540 KB Output is correct
66 Correct 2097 ms 12468 KB Output is correct
67 Correct 3029 ms 12504 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4027 ms 13032 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 4037 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 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 464 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 464 KB Output is correct
21 Correct 1 ms 464 KB Output is correct
22 Correct 1 ms 464 KB Output is correct
23 Correct 3 ms 464 KB Output is correct
24 Correct 1 ms 464 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 3 ms 464 KB Output is correct
27 Correct 2 ms 464 KB Output is correct
28 Correct 2 ms 464 KB Output is correct
29 Correct 2 ms 464 KB Output is correct
30 Correct 2 ms 464 KB Output is correct
31 Correct 2 ms 424 KB Output is correct
32 Correct 2 ms 464 KB Output is correct
33 Correct 2 ms 464 KB Output is correct
34 Correct 3 ms 464 KB Output is correct
35 Correct 2 ms 464 KB Output is correct
36 Correct 22 ms 3148 KB Output is correct
37 Correct 362 ms 5572 KB Output is correct
38 Correct 42 ms 2592 KB Output is correct
39 Correct 354 ms 4548 KB Output is correct
40 Correct 33 ms 2524 KB Output is correct
41 Correct 1272 ms 11172 KB Output is correct
42 Correct 12 ms 1352 KB Output is correct
43 Correct 731 ms 6872 KB Output is correct
44 Correct 75 ms 2596 KB Output is correct
45 Correct 13 ms 1360 KB Output is correct
46 Correct 12 ms 1360 KB Output is correct
47 Correct 26 ms 5656 KB Output is correct
48 Correct 19 ms 3592 KB Output is correct
49 Correct 22 ms 1856 KB Output is correct
50 Correct 101 ms 3668 KB Output is correct
51 Correct 293 ms 5916 KB Output is correct
52 Correct 61 ms 12432 KB Output is correct
53 Correct 61 ms 12424 KB Output is correct
54 Correct 66 ms 12448 KB Output is correct
55 Correct 1753 ms 12596 KB Output is correct
56 Correct 1617 ms 12424 KB Output is correct
57 Correct 2183 ms 12188 KB Output is correct
58 Correct 1564 ms 12432 KB Output is correct
59 Correct 901 ms 12436 KB Output is correct
60 Correct 101 ms 12500 KB Output is correct
61 Correct 858 ms 12608 KB Output is correct
62 Correct 1471 ms 12408 KB Output is correct
63 Correct 812 ms 12492 KB Output is correct
64 Correct 3006 ms 12408 KB Output is correct
65 Correct 3090 ms 12540 KB Output is correct
66 Correct 2097 ms 12468 KB Output is correct
67 Correct 3029 ms 12504 KB Output is correct
68 Execution timed out 4027 ms 13032 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 4054 ms 6484 KB Time limit exceeded
2 Halted 0 ms 0 KB -