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Submission #1078854

# Submission time Handle Problem Language Result Execution time Memory
1078854 2024-08-28T07:14:56 Z mickey080929 Radio Towers (IOI22_towers) C++17
11 / 100
 4000 ms 1612 KB 
#include "towers.h"
#include <bits/stdc++.h>

using namespace std;

const int inf = 2e9 + 10;

int N;
vector<int> H;

void init(int _N, vector<int> _H) {
    N = _N;
    H = _H;
}

int max_towers(int L, int R, int D) {
    vector<int> id;
    for (int i=L; i<=R; i++) {
        id.push_back(i);
    }
    sort(id.begin(), id.end(), [&] (int &u, int &v) { return H[u] > H[v]; });
    int ans = 1;
    vector<int> pos = {L-1, R+1};
    for (int i=0; i<id.size(); i++) {
        vector<int> cur = pos;
        cur.push_back(id[i]);
        sort(cur.begin(), cur.end());
        int cnt = 0;
        for (int j=0; j+1<cur.size(); j++) {
            int lh, rh;
            if (cur[j] == L-1) lh = inf;
            else lh = H[cur[j]];
            if (cur[j+1] == R+1) rh = inf;
            else rh = H[cur[j+1]];
            for (int k=cur[j]+1; k<=cur[j+1]-1; k++) {
                if (H[k] <= min(lh, rh) - D) {
                    cnt ++;
                    break;
                }
            }
        }
        if (ans <= cnt) {
            ans = cnt;
            pos = cur;
        }
    }
    return ans;
}

Compilation message

towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:24:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i=0; i<id.size(); i++) {
      |                   ~^~~~~~~~~~
towers.cpp:29:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |         for (int j=0; j+1<cur.size(); j++) {
      |                       ~~~^~~~~~~~~~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4035 ms 1112 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 344 KB Output is correct
2 Correct 14 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 6 ms 524 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 4 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 340 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 14 ms 532 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 4 ms 504 KB Output is correct
20 Correct 31 ms 532 KB Output is correct
21 Correct 36 ms 344 KB Output is correct
22 Correct 26 ms 344 KB Output is correct
23 Correct 17 ms 344 KB Output is correct
24 Correct 61 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 19 ms 536 KB Output is correct
27 Correct 32 ms 344 KB Output is correct
28 Correct 26 ms 344 KB Output is correct
29 Correct 26 ms 512 KB Output is correct
30 Correct 22 ms 344 KB Output is correct
31 Correct 24 ms 540 KB Output is correct
32 Correct 44 ms 532 KB Output is correct
33 Correct 13 ms 344 KB Output is correct
34 Correct 13 ms 524 KB Output is correct
35 Correct 17 ms 596 KB Output is correct

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 14 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 6 ms 524 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 4 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 340 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 14 ms 532 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 4 ms 504 KB Output is correct
20 Correct 31 ms 532 KB Output is correct
21 Correct 36 ms 344 KB Output is correct
22 Correct 26 ms 344 KB Output is correct
23 Correct 17 ms 344 KB Output is correct
24 Correct 61 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 19 ms 536 KB Output is correct
27 Correct 32 ms 344 KB Output is correct
28 Correct 26 ms 344 KB Output is correct
29 Correct 26 ms 512 KB Output is correct
30 Correct 22 ms 344 KB Output is correct
31 Correct 24 ms 540 KB Output is correct
32 Correct 44 ms 532 KB Output is correct
33 Correct 13 ms 344 KB Output is correct
34 Correct 13 ms 524 KB Output is correct
35 Correct 17 ms 596 KB Output is correct
36 Execution timed out 4053 ms 1408 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4051 ms 1612 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 4033 ms 1024 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 344 KB Output is correct
2 Correct 14 ms 344 KB Output is correct
3 Correct 5 ms 344 KB Output is correct
4 Correct 4 ms 344 KB Output is correct
5 Correct 6 ms 524 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 4 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 340 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 3 ms 344 KB Output is correct
14 Correct 2 ms 344 KB Output is correct
15 Correct 2 ms 344 KB Output is correct
16 Correct 14 ms 532 KB Output is correct
17 Correct 2 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 4 ms 504 KB Output is correct
20 Correct 31 ms 532 KB Output is correct
21 Correct 36 ms 344 KB Output is correct
22 Correct 26 ms 344 KB Output is correct
23 Correct 17 ms 344 KB Output is correct
24 Correct 61 ms 344 KB Output is correct
25 Correct 7 ms 344 KB Output is correct
26 Correct 19 ms 536 KB Output is correct
27 Correct 32 ms 344 KB Output is correct
28 Correct 26 ms 344 KB Output is correct
29 Correct 26 ms 512 KB Output is correct
30 Correct 22 ms 344 KB Output is correct
31 Correct 24 ms 540 KB Output is correct
32 Correct 44 ms 532 KB Output is correct
33 Correct 13 ms 344 KB Output is correct
34 Correct 13 ms 524 KB Output is correct
35 Correct 17 ms 596 KB Output is correct
36 Execution timed out 4053 ms 1408 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4035 ms 1112 KB Time limit exceeded
2 Halted 0 ms 0 KB -