oj.uz

Submission #1056536

# Submission time Handle Problem Language Result Execution time Memory
1056536 2024-08-13T09:55:35 Z parsadox2 Radio Towers (IOI22_towers) C++17
37 / 100
 4000 ms 20016 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 b[N] , psum[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]);
		}
	}
	for(int i = 1 ; i + 1 < n ; i++)  if(a[i] > a[i - 1] && a[i] > a[i + 1])
		b[i] = 1;
	for(int i = 1 ; i < n ; i++)
		psum[i] = psum[i - 1] + b[i];
}
 
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)
{
	if(d == 1)
	{
		if(l + 1 >= r)
			return 1;
		return 1 + psum[r - 1] - psum[l];
	}
	return Solve(l , r , d , inf);
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3171 ms 17636 KB Output is correct
2 Execution timed out 4024 ms 20016 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 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6488 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6488 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 1 ms 6488 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6488 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6488 KB Output is correct
22 Correct 1 ms 6488 KB Output is correct
23 Correct 1 ms 6488 KB Output is correct
24 Correct 1 ms 6488 KB Output is correct
25 Correct 1 ms 6488 KB Output is correct
26 Correct 1 ms 6488 KB Output is correct
27 Correct 1 ms 6488 KB Output is correct
28 Correct 1 ms 6488 KB Output is correct
29 Correct 1 ms 6488 KB Output is correct
30 Correct 1 ms 6488 KB Output is correct
31 Correct 1 ms 6488 KB Output is correct
32 Correct 1 ms 6488 KB Output is correct
33 Correct 1 ms 6484 KB Output is correct
34 Correct 1 ms 6488 KB Output is correct
35 Correct 1 ms 6488 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6488 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6488 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 1 ms 6488 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6488 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6488 KB Output is correct
22 Correct 1 ms 6488 KB Output is correct
23 Correct 1 ms 6488 KB Output is correct
24 Correct 1 ms 6488 KB Output is correct
25 Correct 1 ms 6488 KB Output is correct
26 Correct 1 ms 6488 KB Output is correct
27 Correct 1 ms 6488 KB Output is correct
28 Correct 1 ms 6488 KB Output is correct
29 Correct 1 ms 6488 KB Output is correct
30 Correct 1 ms 6488 KB Output is correct
31 Correct 1 ms 6488 KB Output is correct
32 Correct 1 ms 6488 KB Output is correct
33 Correct 1 ms 6484 KB Output is correct
34 Correct 1 ms 6488 KB Output is correct
35 Correct 1 ms 6488 KB Output is correct
36 Correct 10 ms 15448 KB Output is correct
37 Correct 13 ms 15944 KB Output is correct
38 Correct 13 ms 15928 KB Output is correct
39 Correct 13 ms 15960 KB Output is correct
40 Correct 12 ms 16052 KB Output is correct
41 Correct 13 ms 15928 KB Output is correct
42 Correct 13 ms 15924 KB Output is correct
43 Correct 13 ms 17108 KB Output is correct
44 Correct 12 ms 15924 KB Output is correct
45 Correct 13 ms 15944 KB Output is correct
46 Correct 12 ms 16056 KB Output is correct
47 Correct 12 ms 15952 KB Output is correct
48 Correct 13 ms 15960 KB Output is correct
49 Correct 13 ms 15960 KB Output is correct
50 Correct 13 ms 15960 KB Output is correct
51 Correct 19 ms 15908 KB Output is correct
52 Correct 13 ms 16056 KB Output is correct
53 Correct 13 ms 15960 KB Output is correct
54 Correct 12 ms 15960 KB Output is correct
55 Correct 18 ms 15936 KB Output is correct
56 Correct 13 ms 15960 KB Output is correct
57 Correct 15 ms 16048 KB Output is correct
58 Correct 14 ms 15960 KB Output is correct
59 Correct 16 ms 15932 KB Output is correct
60 Correct 16 ms 15960 KB Output is correct
61 Correct 16 ms 15960 KB Output is correct
62 Correct 14 ms 16056 KB Output is correct
63 Correct 16 ms 15960 KB Output is correct
64 Correct 15 ms 17872 KB Output is correct
65 Correct 14 ms 17616 KB Output is correct
66 Correct 14 ms 17360 KB Output is correct
67 Correct 17 ms 17872 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 425 ms 15956 KB Output is correct
2 Correct 473 ms 15960 KB Output is correct
3 Correct 553 ms 15960 KB Output is correct
4 Correct 534 ms 15960 KB Output is correct
5 Correct 560 ms 15960 KB Output is correct
6 Correct 539 ms 15960 KB Output is correct
7 Correct 526 ms 15960 KB Output is correct
8 Correct 534 ms 15924 KB Output is correct
9 Correct 514 ms 15960 KB Output is correct
10 Correct 471 ms 15960 KB Output is correct
11 Correct 523 ms 15960 KB Output is correct
12 Correct 545 ms 15960 KB Output is correct
13 Correct 500 ms 15960 KB Output is correct
14 Correct 1 ms 6488 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 13 ms 15936 KB Output is correct
18 Correct 12 ms 15944 KB Output is correct
19 Correct 13 ms 15960 KB Output is correct
20 Correct 14 ms 15960 KB Output is correct
21 Correct 13 ms 15960 KB Output is correct
22 Correct 13 ms 16056 KB Output is correct
23 Correct 13 ms 15960 KB Output is correct
24 Correct 12 ms 15920 KB Output is correct
25 Correct 18 ms 15960 KB Output is correct
26 Correct 13 ms 15960 KB Output is correct
27 Correct 1 ms 6620 KB Output is correct
28 Correct 1 ms 6488 KB Output is correct
29 Correct 1 ms 6488 KB Output is correct
30 Correct 1 ms 6488 KB Output is correct
31 Correct 1 ms 6488 KB Output is correct
32 Correct 1 ms 6488 KB Output is correct
33 Correct 1 ms 6488 KB Output is correct
34 Correct 1 ms 6488 KB Output is correct
35 Correct 1 ms 6488 KB Output is correct
36 Correct 1 ms 6488 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4011 ms 10840 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 6488 KB Output is correct
2 Correct 1 ms 6488 KB Output is correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 1 ms 6488 KB Output is correct
5 Correct 1 ms 6488 KB Output is correct
6 Correct 1 ms 6488 KB Output is correct
7 Correct 1 ms 6488 KB Output is correct
8 Correct 1 ms 6488 KB Output is correct
9 Correct 1 ms 6488 KB Output is correct
10 Correct 1 ms 6488 KB Output is correct
11 Correct 1 ms 6488 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6488 KB Output is correct
14 Correct 1 ms 6488 KB Output is correct
15 Correct 1 ms 6488 KB Output is correct
16 Correct 1 ms 6488 KB Output is correct
17 Correct 1 ms 6488 KB Output is correct
18 Correct 1 ms 6488 KB Output is correct
19 Correct 1 ms 6488 KB Output is correct
20 Correct 1 ms 6488 KB Output is correct
21 Correct 1 ms 6488 KB Output is correct
22 Correct 1 ms 6488 KB Output is correct
23 Correct 1 ms 6488 KB Output is correct
24 Correct 1 ms 6488 KB Output is correct
25 Correct 1 ms 6488 KB Output is correct
26 Correct 1 ms 6488 KB Output is correct
27 Correct 1 ms 6488 KB Output is correct
28 Correct 1 ms 6488 KB Output is correct
29 Correct 1 ms 6488 KB Output is correct
30 Correct 1 ms 6488 KB Output is correct
31 Correct 1 ms 6488 KB Output is correct
32 Correct 1 ms 6488 KB Output is correct
33 Correct 1 ms 6484 KB Output is correct
34 Correct 1 ms 6488 KB Output is correct
35 Correct 1 ms 6488 KB Output is correct
36 Correct 10 ms 15448 KB Output is correct
37 Correct 13 ms 15944 KB Output is correct
38 Correct 13 ms 15928 KB Output is correct
39 Correct 13 ms 15960 KB Output is correct
40 Correct 12 ms 16052 KB Output is correct
41 Correct 13 ms 15928 KB Output is correct
42 Correct 13 ms 15924 KB Output is correct
43 Correct 13 ms 17108 KB Output is correct
44 Correct 12 ms 15924 KB Output is correct
45 Correct 13 ms 15944 KB Output is correct
46 Correct 12 ms 16056 KB Output is correct
47 Correct 12 ms 15952 KB Output is correct
48 Correct 13 ms 15960 KB Output is correct
49 Correct 13 ms 15960 KB Output is correct
50 Correct 13 ms 15960 KB Output is correct
51 Correct 19 ms 15908 KB Output is correct
52 Correct 13 ms 16056 KB Output is correct
53 Correct 13 ms 15960 KB Output is correct
54 Correct 12 ms 15960 KB Output is correct
55 Correct 18 ms 15936 KB Output is correct
56 Correct 13 ms 15960 KB Output is correct
57 Correct 15 ms 16048 KB Output is correct
58 Correct 14 ms 15960 KB Output is correct
59 Correct 16 ms 15932 KB Output is correct
60 Correct 16 ms 15960 KB Output is correct
61 Correct 16 ms 15960 KB Output is correct
62 Correct 14 ms 16056 KB Output is correct
63 Correct 16 ms 15960 KB Output is correct
64 Correct 15 ms 17872 KB Output is correct
65 Correct 14 ms 17616 KB Output is correct
66 Correct 14 ms 17360 KB Output is correct
67 Correct 17 ms 17872 KB Output is correct
68 Correct 425 ms 15956 KB Output is correct
69 Correct 473 ms 15960 KB Output is correct
70 Correct 553 ms 15960 KB Output is correct
71 Correct 534 ms 15960 KB Output is correct
72 Correct 560 ms 15960 KB Output is correct
73 Correct 539 ms 15960 KB Output is correct
74 Correct 526 ms 15960 KB Output is correct
75 Correct 534 ms 15924 KB Output is correct
76 Correct 514 ms 15960 KB Output is correct
77 Correct 471 ms 15960 KB Output is correct
78 Correct 523 ms 15960 KB Output is correct
79 Correct 545 ms 15960 KB Output is correct
80 Correct 500 ms 15960 KB Output is correct
81 Correct 1 ms 6488 KB Output is correct
82 Correct 1 ms 6488 KB Output is correct
83 Correct 1 ms 6488 KB Output is correct
84 Correct 13 ms 15936 KB Output is correct
85 Correct 12 ms 15944 KB Output is correct
86 Correct 13 ms 15960 KB Output is correct
87 Correct 14 ms 15960 KB Output is correct
88 Correct 13 ms 15960 KB Output is correct
89 Correct 13 ms 16056 KB Output is correct
90 Correct 13 ms 15960 KB Output is correct
91 Correct 12 ms 15920 KB Output is correct
92 Correct 18 ms 15960 KB Output is correct
93 Correct 13 ms 15960 KB Output is correct
94 Correct 1 ms 6620 KB Output is correct
95 Correct 1 ms 6488 KB Output is correct
96 Correct 1 ms 6488 KB Output is correct
97 Correct 1 ms 6488 KB Output is correct
98 Correct 1 ms 6488 KB Output is correct
99 Correct 1 ms 6488 KB Output is correct
100 Correct 1 ms 6488 KB Output is correct
101 Correct 1 ms 6488 KB Output is correct
102 Correct 1 ms 6488 KB Output is correct
103 Correct 1 ms 6488 KB Output is correct
104 Execution timed out 4058 ms 15960 KB Time limit exceeded
105 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3171 ms 17636 KB Output is correct
2 Execution timed out 4024 ms 20016 KB Time limit exceeded
3 Halted 0 ms 0 KB -