oj.uz

Submission #828932

# Submission time Handle Problem Language Result Execution time Memory
828932 2023-08-17T20:55:13 Z arnold518 Radio Towers (IOI22_towers) C++17
23 / 100
 4000 ms 19272 KB 
#include "towers.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;
const int INF = 1e9+7;

int N, A[MAXN+10];

struct SEG
{
	pii minv[MAXN*4+10], maxv[MAXN*4+10];
	void init(int node, int tl, int tr)
	{
		if(tl==tr)
		{
			minv[node]={A[tl], tl};
			maxv[node]={A[tl], tl};
			return;
		}
		int mid=tl+tr>>1;
		init(node*2, tl, mid);
		init(node*2+1, mid+1, tr);
		minv[node]=min(minv[node*2], minv[node*2+1]);
		maxv[node]=max(maxv[node*2], maxv[node*2+1]);
	}
	pii query1(int node, int tl, int tr, int l, int r)
	{
		if(l<=tl && tr<=r) return minv[node];
		if(r<tl || tr<l) return {INF, 0};
		int mid=tl+tr>>1;
		return min(query1(node*2, tl, mid, l, r), query1(node*2+1, mid+1, tr, l, r));
	}
	pii query2(int node, int tl, int tr, int l, int r)
	{
		if(l<=tl && tr<=r) return maxv[node];
		if(r<tl || tr<l) return {-INF, 0};
		int mid=tl+tr>>1;
		return max(query2(node*2, tl, mid, l, r), query2(node*2+1, mid+1, tr, l, r));
	}
}seg;

void init(int _N, vector<int> _H)
{
	N=_N;
	for(int i=1; i<=N; i++) A[i]=_H[i-1];
	seg.init(1, 1, N);
}

int solve(int l, int r, int d)
{
	//printf("%d %d %d\n", l, r, d);
	if(l>r) return 0;
	int ret=0;
	pii p=seg.query2(1, 1, N, l, r);
	int lv=solve(l, p.second-1, d), rv=solve(p.second+1, r, d);
	if(seg.query1(1, 1, N, l, p.second-1).first>p.first-d) lv=0;
	if(seg.query1(1, 1, N, p.second+1, r).first>p.first-d) rv=0;
	ret=lv+rv;
	return max(1, ret);
}

int max_towers(int L, int R, int D) 
{
	L++; R++;
	return solve(L, R, D);
}

Compilation message

towers.cpp: In member function 'void SEG::init(int, int, int)':
towers.cpp:25:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |   int mid=tl+tr>>1;
      |           ~~^~~
towers.cpp: In member function 'pii SEG::query1(int, int, int, int, int)':
towers.cpp:35:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |   int mid=tl+tr>>1;
      |           ~~^~~
towers.cpp: In member function 'pii SEG::query2(int, int, int, int, int)':
towers.cpp:42:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |   int mid=tl+tr>>1;
      |           ~~^~~

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4008 ms 9548 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 336 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 464 KB Output is correct
10 Correct 1 ms 336 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 464 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 300 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 464 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 592 KB Output is correct
24 Correct 1 ms 592 KB Output is correct
25 Correct 1 ms 336 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 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 592 KB Output is correct
33 Correct 1 ms 592 KB Output is correct
34 Correct 1 ms 592 KB Output is correct
35 Correct 1 ms 592 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 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 464 KB Output is correct
10 Correct 1 ms 336 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 464 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 300 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 464 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 592 KB Output is correct
24 Correct 1 ms 592 KB Output is correct
25 Correct 1 ms 336 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 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 592 KB Output is correct
33 Correct 1 ms 592 KB Output is correct
34 Correct 1 ms 592 KB Output is correct
35 Correct 1 ms 592 KB Output is correct
36 Correct 18 ms 3120 KB Output is correct
37 Correct 25 ms 5536 KB Output is correct
38 Correct 19 ms 5544 KB Output is correct
39 Correct 23 ms 5584 KB Output is correct
40 Correct 15 ms 5584 KB Output is correct
41 Correct 51 ms 5540 KB Output is correct
42 Correct 12 ms 5576 KB Output is correct
43 Correct 35 ms 12356 KB Output is correct
44 Correct 16 ms 7112 KB Output is correct
45 Correct 18 ms 5504 KB Output is correct
46 Correct 12 ms 5548 KB Output is correct
47 Correct 24 ms 5584 KB Output is correct
48 Correct 25 ms 5536 KB Output is correct
49 Correct 14 ms 5560 KB Output is correct
50 Correct 21 ms 8220 KB Output is correct
51 Correct 28 ms 10652 KB Output is correct
52 Correct 49 ms 5540 KB Output is correct
53 Correct 49 ms 5544 KB Output is correct
54 Correct 49 ms 5584 KB Output is correct
55 Correct 47 ms 19272 KB Output is correct
56 Correct 52 ms 17988 KB Output is correct
57 Correct 50 ms 5456 KB Output is correct
58 Correct 49 ms 5552 KB Output is correct
59 Correct 55 ms 5576 KB Output is correct
60 Correct 47 ms 5548 KB Output is correct
61 Correct 47 ms 5548 KB Output is correct
62 Correct 47 ms 5548 KB Output is correct
63 Correct 47 ms 5584 KB Output is correct
64 Correct 44 ms 19264 KB Output is correct
65 Correct 58 ms 19260 KB Output is correct
66 Correct 49 ms 13720 KB Output is correct
67 Correct 48 ms 18432 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4037 ms 5540 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 1632 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 336 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 464 KB Output is correct
10 Correct 1 ms 336 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 464 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 300 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 464 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 592 KB Output is correct
24 Correct 1 ms 592 KB Output is correct
25 Correct 1 ms 336 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 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 592 KB Output is correct
33 Correct 1 ms 592 KB Output is correct
34 Correct 1 ms 592 KB Output is correct
35 Correct 1 ms 592 KB Output is correct
36 Correct 18 ms 3120 KB Output is correct
37 Correct 25 ms 5536 KB Output is correct
38 Correct 19 ms 5544 KB Output is correct
39 Correct 23 ms 5584 KB Output is correct
40 Correct 15 ms 5584 KB Output is correct
41 Correct 51 ms 5540 KB Output is correct
42 Correct 12 ms 5576 KB Output is correct
43 Correct 35 ms 12356 KB Output is correct
44 Correct 16 ms 7112 KB Output is correct
45 Correct 18 ms 5504 KB Output is correct
46 Correct 12 ms 5548 KB Output is correct
47 Correct 24 ms 5584 KB Output is correct
48 Correct 25 ms 5536 KB Output is correct
49 Correct 14 ms 5560 KB Output is correct
50 Correct 21 ms 8220 KB Output is correct
51 Correct 28 ms 10652 KB Output is correct
52 Correct 49 ms 5540 KB Output is correct
53 Correct 49 ms 5544 KB Output is correct
54 Correct 49 ms 5584 KB Output is correct
55 Correct 47 ms 19272 KB Output is correct
56 Correct 52 ms 17988 KB Output is correct
57 Correct 50 ms 5456 KB Output is correct
58 Correct 49 ms 5552 KB Output is correct
59 Correct 55 ms 5576 KB Output is correct
60 Correct 47 ms 5548 KB Output is correct
61 Correct 47 ms 5548 KB Output is correct
62 Correct 47 ms 5548 KB Output is correct
63 Correct 47 ms 5584 KB Output is correct
64 Correct 44 ms 19264 KB Output is correct
65 Correct 58 ms 19260 KB Output is correct
66 Correct 49 ms 13720 KB Output is correct
67 Correct 48 ms 18432 KB Output is correct
68 Execution timed out 4037 ms 5540 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 4008 ms 9548 KB Time limit exceeded
2 Halted 0 ms 0 KB -