Submission #784254

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
784254	2023-07-15T22:29:49 Z	GordonRemzi007	Radio Towers (IOI22_towers)	C++17	11 / 100	4000 ms	2344 KB

towers

#include <iostream>
#include <vector>
#include <algorithm>
 
using namespace std;
 
vector<int> a;
vector<bool> used;
vector<pair<int,int>> b;
bool srt(pair<int,int> a, pair<int,int> b) {
    return a.first < b.first;
}
void init(int n, vector<int> h) {
  	a = h;
  	used = vector<bool>(n, false);
	b = vector<pair<int,int>>(n);
	for(int i = 0; i < n; i++) b[i] = {a[i], i};
    sort(b.begin(), b.end(), srt);
}
int max_towers(int l, int r, int d) {
    int res = 0, f, s;
    bool ok;
  	used = vector<bool>(a.size(), false);
    for(int i = 0; i < a.size(); i++) {
		if(l > b[i].second || r < b[i].second) continue;
        f = b[i].second, s = b[i].second;
        ok = true;
        //find closest left and right a[i] >= a[b[i].second]+d
        for(; f >= l; f--) {
            if(used[f]) {
                ok = false;
                break;
            }
            if(a[f] >= a[b[i].second]+d) break;
            if(f == l) {
                f = b[i].second;
                break;
            }
        }
        for(; s <= r; s++) {
            if(used[s]) {
                ok = false;
                break;
            }
            if(a[s] >= a[b[i].second]+d) break;
            if(s == r) {
                s = b[i].second;
                break;
            }
        }
        if(ok) {
            used[b[i].second] = true;
            res++;
        }
    }
    return res;
}

Compilation message

towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:24:22: 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 < a.size(); i++) {
      |                    ~~^~~~~~~~~~

Subtask #1
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4067 ms	1372 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	208 KB	Output is correct
2	Correct	1 ms	208 KB	Output is correct
3	Correct	1 ms	208 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	208 KB	Output is correct
6	Correct	1 ms	208 KB	Output is correct
7	Correct	1 ms	208 KB	Output is correct
8	Correct	1 ms	208 KB	Output is correct
9	Correct	1 ms	208 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	208 KB	Output is correct
12	Correct	0 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	384 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	208 KB	Output is correct
19	Correct	1 ms	208 KB	Output is correct
20	Correct	1 ms	208 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	3 ms	208 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	1 ms	208 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	208 KB	Output is correct
29	Correct	1 ms	208 KB	Output is correct
30	Correct	1 ms	208 KB	Output is correct
31	Correct	1 ms	208 KB	Output is correct
32	Correct	4 ms	208 KB	Output is correct
33	Correct	4 ms	208 KB	Output is correct
34	Correct	5 ms	336 KB	Output is correct
35	Correct	1 ms	208 KB	Output is correct

Subtask #3
0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	208 KB	Output is correct
2	Correct	1 ms	208 KB	Output is correct
3	Correct	1 ms	208 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	208 KB	Output is correct
6	Correct	1 ms	208 KB	Output is correct
7	Correct	1 ms	208 KB	Output is correct
8	Correct	1 ms	208 KB	Output is correct
9	Correct	1 ms	208 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	208 KB	Output is correct
12	Correct	0 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	384 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	208 KB	Output is correct
19	Correct	1 ms	208 KB	Output is correct
20	Correct	1 ms	208 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	3 ms	208 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	1 ms	208 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	208 KB	Output is correct
29	Correct	1 ms	208 KB	Output is correct
30	Correct	1 ms	208 KB	Output is correct
31	Correct	1 ms	208 KB	Output is correct
32	Correct	4 ms	208 KB	Output is correct
33	Correct	4 ms	208 KB	Output is correct
34	Correct	5 ms	336 KB	Output is correct
35	Correct	1 ms	208 KB	Output is correct
36	Correct	13 ms	1588 KB	Output is correct
37	Correct	24 ms	2344 KB	Output is correct
38	Correct	19 ms	2192 KB	Output is correct
39	Correct	21 ms	2208 KB	Output is correct
40	Correct	19 ms	2256 KB	Output is correct
41	Correct	23 ms	2224 KB	Output is correct
42	Correct	25 ms	2264 KB	Output is correct
43	Correct	2239 ms	2200 KB	Output is correct
44	Correct	200 ms	2256 KB	Output is correct
45	Correct	22 ms	2212 KB	Output is correct
46	Correct	15 ms	2204 KB	Output is correct
47	Correct	20 ms	2208 KB	Output is correct
48	Correct	18 ms	2200 KB	Output is correct
49	Correct	18 ms	2204 KB	Output is correct
50	Correct	203 ms	2224 KB	Output is correct
51	Correct	485 ms	2256 KB	Output is correct
52	Correct	20 ms	2256 KB	Output is correct
53	Correct	23 ms	2212 KB	Output is correct
54	Correct	19 ms	2208 KB	Output is correct
55	Execution timed out	4041 ms	2212 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #4
0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4014 ms	2252 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	4094 ms	720 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	208 KB	Output is correct
2	Correct	1 ms	208 KB	Output is correct
3	Correct	1 ms	208 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	208 KB	Output is correct
6	Correct	1 ms	208 KB	Output is correct
7	Correct	1 ms	208 KB	Output is correct
8	Correct	1 ms	208 KB	Output is correct
9	Correct	1 ms	208 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	208 KB	Output is correct
12	Correct	0 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	384 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	208 KB	Output is correct
19	Correct	1 ms	208 KB	Output is correct
20	Correct	1 ms	208 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	3 ms	208 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	1 ms	208 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	208 KB	Output is correct
29	Correct	1 ms	208 KB	Output is correct
30	Correct	1 ms	208 KB	Output is correct
31	Correct	1 ms	208 KB	Output is correct
32	Correct	4 ms	208 KB	Output is correct
33	Correct	4 ms	208 KB	Output is correct
34	Correct	5 ms	336 KB	Output is correct
35	Correct	1 ms	208 KB	Output is correct
36	Correct	13 ms	1588 KB	Output is correct
37	Correct	24 ms	2344 KB	Output is correct
38	Correct	19 ms	2192 KB	Output is correct
39	Correct	21 ms	2208 KB	Output is correct
40	Correct	19 ms	2256 KB	Output is correct
41	Correct	23 ms	2224 KB	Output is correct
42	Correct	25 ms	2264 KB	Output is correct
43	Correct	2239 ms	2200 KB	Output is correct
44	Correct	200 ms	2256 KB	Output is correct
45	Correct	22 ms	2212 KB	Output is correct
46	Correct	15 ms	2204 KB	Output is correct
47	Correct	20 ms	2208 KB	Output is correct
48	Correct	18 ms	2200 KB	Output is correct
49	Correct	18 ms	2204 KB	Output is correct
50	Correct	203 ms	2224 KB	Output is correct
51	Correct	485 ms	2256 KB	Output is correct
52	Correct	20 ms	2256 KB	Output is correct
53	Correct	23 ms	2212 KB	Output is correct
54	Correct	19 ms	2208 KB	Output is correct
55	Execution timed out	4041 ms	2212 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	4067 ms	1372 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Submission #784254

Compilation message

Subtask #1 0 / 4.0

Subtask #2 11.0 / 11.0

Subtask #3 0 / 12.0

Subtask #4 0 / 14.0

Subtask #5 0 / 17.0

Subtask #6 0 / 19.0

Subtask #7 0 / 23.0

Subtask #1
0 / 4.0

Subtask #2
11.0 / 11.0

Subtask #3
0 / 12.0

Subtask #4
0 / 14.0

Subtask #5
0 / 17.0

Subtask #6
0 / 19.0

Subtask #7
0 / 23.0