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Submission #1056380

# Submission time Handle Problem Language Result Execution time Memory
1056380 2024-08-13T09:06:11 Z parsadox2 Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 19388 KB 
#include <bits/stdc++.h>
#include "towers.h"

using namespace std;

const int N = 1e5 + 10 , inf = 1e9 , Lg = 17;

int n , a[N] , rmxq[N][Lg] , rmnq[N][Lg] , lg2[N];

int mn_pos(int aa , int bb)
{
	if(a[aa] < a[bb])
		return aa;
	return bb;
}

int mx_pos(int aa , int bb)
{
	if(a[aa] > a[bb])
		return aa;
	return bb;
}

void Build()
{
	lg2[1] = 0;
	for(int i = 2 ; i < N ; i++)
		lg2[i] = lg2[i / 2] + 1;
	for(int i = 0 ; i < n ; i++)
		rmnq[i][0] = rmxq[i][0] = i;
	for(int j = 1 ; j < Lg ; j++)
	{
		int len = (1 << j);
		for(int i = 0 ; i + len <= n ; i++)
		{
			rmnq[i][j] = mn_pos(rmnq[i][j - 1] , rmnq[i + len / 2][j - 1]);
			rmxq[i][j] = mx_pos(rmxq[i][j - 1] , rmxq[i + len / 2][j - 1]);
		}
	}
}

int Get_mx(int l , int r)
{
	r++;
	int sz = (r - l);  sz = lg2[sz];
	return mx_pos(rmxq[l][sz] , rmxq[r - (1 << sz)][sz]);
}

int Get_mn(int l , int r)
{
	r++;
	int sz = (r - l);  sz = lg2[sz];
	return mn_pos(rmnq[l][sz] , rmnq[r - (1 << sz)][sz]);
}

void init(int nn , vector <int> vec)
{
	n = nn;
	for(int i = 0 ; i < n ; i++)
		a[i] = vec[i];
	Build();
}

int Solve(int l , int r , int d , int val)
{
	if(l > r)
		return 0;
	int mn = a[Get_mn(l , r)];
	int pos_mx = Get_mx(l , r);
	if(mn > val)
		return 0;
	int res = max(1 , Solve(l , pos_mx - 1 , d , a[pos_mx] - d) + Solve(pos_mx + 1 , r , d , a[pos_mx] - d));
	return res;
}


int max_towers(int l , int r , int d)
{
	return Solve(l , r , d , inf);
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2995 ms 15836 KB Output is correct
2 Execution timed out 4002 ms 19228 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4696 KB Output is correct
4 Correct 1 ms 4696 KB Output is correct
5 Correct 1 ms 4696 KB Output is correct
6 Correct 1 ms 4696 KB Output is correct
7 Correct 1 ms 4696 KB Output is correct
8 Correct 1 ms 4696 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4696 KB Output is correct
11 Correct 1 ms 4696 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4696 KB Output is correct
14 Correct 1 ms 4696 KB Output is correct
15 Correct 1 ms 4696 KB Output is correct
16 Correct 1 ms 4696 KB Output is correct
17 Correct 1 ms 4696 KB Output is correct
18 Correct 1 ms 4696 KB Output is correct
19 Correct 1 ms 4744 KB Output is correct
20 Correct 1 ms 4696 KB Output is correct
21 Correct 1 ms 4696 KB Output is correct
22 Correct 1 ms 4696 KB Output is correct
23 Correct 1 ms 4696 KB Output is correct
24 Correct 1 ms 4696 KB Output is correct
25 Correct 1 ms 4696 KB Output is correct
26 Correct 1 ms 4696 KB Output is correct
27 Correct 1 ms 4696 KB Output is correct
28 Correct 1 ms 4696 KB Output is correct
29 Correct 1 ms 4696 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 1 ms 4696 KB Output is correct
32 Correct 1 ms 4696 KB Output is correct
33 Correct 1 ms 4696 KB Output is correct
34 Correct 1 ms 4696 KB Output is correct
35 Correct 1 ms 4696 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4696 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4696 KB Output is correct
4 Correct 1 ms 4696 KB Output is correct
5 Correct 1 ms 4696 KB Output is correct
6 Correct 1 ms 4696 KB Output is correct
7 Correct 1 ms 4696 KB Output is correct
8 Correct 1 ms 4696 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4696 KB Output is correct
11 Correct 1 ms 4696 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4696 KB Output is correct
14 Correct 1 ms 4696 KB Output is correct
15 Correct 1 ms 4696 KB Output is correct
16 Correct 1 ms 4696 KB Output is correct
17 Correct 1 ms 4696 KB Output is correct
18 Correct 1 ms 4696 KB Output is correct
19 Correct 1 ms 4744 KB Output is correct
20 Correct 1 ms 4696 KB Output is correct
21 Correct 1 ms 4696 KB Output is correct
22 Correct 1 ms 4696 KB Output is correct
23 Correct 1 ms 4696 KB Output is correct
24 Correct 1 ms 4696 KB Output is correct
25 Correct 1 ms 4696 KB Output is correct
26 Correct 1 ms 4696 KB Output is correct
27 Correct 1 ms 4696 KB Output is correct
28 Correct 1 ms 4696 KB Output is correct
29 Correct 1 ms 4696 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 1 ms 4696 KB Output is correct
32 Correct 1 ms 4696 KB Output is correct
33 Correct 1 ms 4696 KB Output is correct
34 Correct 1 ms 4696 KB Output is correct
35 Correct 1 ms 4696 KB Output is correct
36 Correct 9 ms 13656 KB Output is correct
37 Correct 13 ms 15192 KB Output is correct
38 Correct 13 ms 15192 KB Output is correct
39 Correct 12 ms 15192 KB Output is correct
40 Correct 18 ms 15184 KB Output is correct
41 Correct 13 ms 15192 KB Output is correct
42 Correct 13 ms 15192 KB Output is correct
43 Correct 13 ms 16332 KB Output is correct
44 Correct 18 ms 15192 KB Output is correct
45 Correct 14 ms 15192 KB Output is correct
46 Correct 18 ms 15176 KB Output is correct
47 Correct 13 ms 15192 KB Output is correct
48 Correct 18 ms 15192 KB Output is correct
49 Correct 13 ms 15192 KB Output is correct
50 Correct 13 ms 15876 KB Output is correct
51 Correct 19 ms 16592 KB Output is correct
52 Correct 14 ms 15320 KB Output is correct
53 Correct 13 ms 15192 KB Output is correct
54 Correct 14 ms 15192 KB Output is correct
55 Correct 16 ms 19388 KB Output is correct
56 Correct 21 ms 19152 KB Output is correct
57 Correct 13 ms 15032 KB Output is correct
58 Correct 17 ms 15136 KB Output is correct
59 Correct 14 ms 15192 KB Output is correct
60 Correct 13 ms 15180 KB Output is correct
61 Correct 15 ms 15192 KB Output is correct
62 Correct 14 ms 15316 KB Output is correct
63 Correct 14 ms 15192 KB Output is correct
64 Correct 14 ms 17104 KB Output is correct
65 Correct 14 ms 16976 KB Output is correct
66 Correct 14 ms 16592 KB Output is correct
67 Correct 14 ms 16848 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4073 ms 15192 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 4002 ms 7000 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 4696 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4696 KB Output is correct
4 Correct 1 ms 4696 KB Output is correct
5 Correct 1 ms 4696 KB Output is correct
6 Correct 1 ms 4696 KB Output is correct
7 Correct 1 ms 4696 KB Output is correct
8 Correct 1 ms 4696 KB Output is correct
9 Correct 1 ms 4696 KB Output is correct
10 Correct 1 ms 4696 KB Output is correct
11 Correct 1 ms 4696 KB Output is correct
12 Correct 1 ms 4696 KB Output is correct
13 Correct 1 ms 4696 KB Output is correct
14 Correct 1 ms 4696 KB Output is correct
15 Correct 1 ms 4696 KB Output is correct
16 Correct 1 ms 4696 KB Output is correct
17 Correct 1 ms 4696 KB Output is correct
18 Correct 1 ms 4696 KB Output is correct
19 Correct 1 ms 4744 KB Output is correct
20 Correct 1 ms 4696 KB Output is correct
21 Correct 1 ms 4696 KB Output is correct
22 Correct 1 ms 4696 KB Output is correct
23 Correct 1 ms 4696 KB Output is correct
24 Correct 1 ms 4696 KB Output is correct
25 Correct 1 ms 4696 KB Output is correct
26 Correct 1 ms 4696 KB Output is correct
27 Correct 1 ms 4696 KB Output is correct
28 Correct 1 ms 4696 KB Output is correct
29 Correct 1 ms 4696 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 1 ms 4696 KB Output is correct
32 Correct 1 ms 4696 KB Output is correct
33 Correct 1 ms 4696 KB Output is correct
34 Correct 1 ms 4696 KB Output is correct
35 Correct 1 ms 4696 KB Output is correct
36 Correct 9 ms 13656 KB Output is correct
37 Correct 13 ms 15192 KB Output is correct
38 Correct 13 ms 15192 KB Output is correct
39 Correct 12 ms 15192 KB Output is correct
40 Correct 18 ms 15184 KB Output is correct
41 Correct 13 ms 15192 KB Output is correct
42 Correct 13 ms 15192 KB Output is correct
43 Correct 13 ms 16332 KB Output is correct
44 Correct 18 ms 15192 KB Output is correct
45 Correct 14 ms 15192 KB Output is correct
46 Correct 18 ms 15176 KB Output is correct
47 Correct 13 ms 15192 KB Output is correct
48 Correct 18 ms 15192 KB Output is correct
49 Correct 13 ms 15192 KB Output is correct
50 Correct 13 ms 15876 KB Output is correct
51 Correct 19 ms 16592 KB Output is correct
52 Correct 14 ms 15320 KB Output is correct
53 Correct 13 ms 15192 KB Output is correct
54 Correct 14 ms 15192 KB Output is correct
55 Correct 16 ms 19388 KB Output is correct
56 Correct 21 ms 19152 KB Output is correct
57 Correct 13 ms 15032 KB Output is correct
58 Correct 17 ms 15136 KB Output is correct
59 Correct 14 ms 15192 KB Output is correct
60 Correct 13 ms 15180 KB Output is correct
61 Correct 15 ms 15192 KB Output is correct
62 Correct 14 ms 15316 KB Output is correct
63 Correct 14 ms 15192 KB Output is correct
64 Correct 14 ms 17104 KB Output is correct
65 Correct 14 ms 16976 KB Output is correct
66 Correct 14 ms 16592 KB Output is correct
67 Correct 14 ms 16848 KB Output is correct
68 Execution timed out 4073 ms 15192 KB Time limit exceeded
69 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2995 ms 15836 KB Output is correct
2 Execution timed out 4002 ms 19228 KB Time limit exceeded
3 Halted 0 ms 0 KB -