oj.uz

Submission #566840

# Submission time Handle Problem Language Result Execution time Memory
566840 2022-05-23T03:27:08 Z amunduzbaev Rainforest Jumps (APIO21_jumps) C++17
23 / 100
 998 ms 36500 KB 
#include "jumps.h"

#ifndef EVAL
#include "stub.cpp"
#endif

#include "bits/stdc++.h"
using namespace std;

const int B = 205;
const int N = 2e5 + 5;
int mx[N][20], mn[N][20], h[N];
int lx[N], rx[N];

void init(int n, vector<int> H){
	for(int i=0;i<n;i++){
		h[i] = H[i];
	}
	vector<int> ss;
	for(int i=0;i<n;i++){
		while(!ss.empty() && h[ss.back()] < h[i]) ss.pop_back();
		if(!ss.empty()) lx[i] = ss.back();
		else lx[i] = n;
		ss.push_back(i);
	} ss.clear();
	for(int i=n-1;~i;i--){
		while(!ss.empty() && h[ss.back()] < h[i]) ss.pop_back();
		if(!ss.empty()) rx[i] = ss.back();
		else rx[i] = n;
		ss.push_back(i);
	} ss.clear();
	h[n] = N;
	
	for(int i=0;i<n;i++){
		if(h[lx[i]] < h[rx[i]]){
			swap(lx[i], rx[i]);
		} 
		mn[i][0] = rx[i];
		mx[i][0] = lx[i];
	}
	mn[n][0] = mx[n][0] = n;
	//~ for(int i=0;i<n;i++) cout<<mn[i][0]<<" ";
	//~ cout<<"\n";
	//~ for(int i=0;i<n;i++) cout<<mx[i][0]<<" ";
	//~ cout<<"\n";
	
	for(int j=1;j<20;j++){
		for(int i=0;i<=n;i++){
			mn[i][j] = mn[mn[i][j-1]][j-1];
			mx[i][j] = mx[mx[i][j-1]][j-1];
		}
	}
}

int minimum_jumps(int a, int b, int c, int d) {
	int res = 0;
	for(int i=19;~i;i--){
		if(h[mx[a][i]] <= h[c]){
			//~ cout<<mx[a][i]<<" "<<h[mx[a][i]]<<" "<<h[c]<<"\n";
			//~ cout<<i<<"\n";
			a = mx[a][i], res += (1 << i);
		}
	}
	for(int i=19;~i;i--){
		if(h[mn[a][i]] <= h[c]){
			//~ cout<<mx[a][i]<<" "<<h[mx[a][i]]<<" "<<h[c]<<"\n";
			a = mn[a][i], res += (1 << i);
		}
	}
	
	if(a != c) return -1;
	return res;
}

/*

7 3
3 2 1 6 4 5 7
4 4 6 6
1 3 5 6
0 1 2 2

*/

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Incorrect 165 ms 29080 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 208 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 265 ms 16424 KB Output is correct
5 Correct 769 ms 35508 KB Output is correct
6 Correct 659 ms 6064 KB Output is correct
7 Correct 850 ms 35516 KB Output is correct
8 Correct 411 ms 12460 KB Output is correct
9 Correct 917 ms 35504 KB Output is correct
10 Correct 998 ms 36412 KB Output is correct
11 Correct 939 ms 36396 KB Output is correct
12 Correct 848 ms 36244 KB Output is correct
13 Correct 909 ms 35516 KB Output is correct
14 Correct 745 ms 35988 KB Output is correct
15 Correct 772 ms 36500 KB Output is correct
16 Correct 821 ms 36436 KB Output is correct
17 Correct 0 ms 208 KB Output is correct
18 Correct 0 ms 208 KB Output is correct
19 Correct 2 ms 208 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 3 ms 336 KB Output is correct
24 Correct 2 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 17 ms 592 KB Output is correct
28 Correct 19 ms 592 KB Output is correct
29 Correct 18 ms 592 KB Output is correct
30 Correct 18 ms 592 KB Output is correct
31 Correct 14 ms 592 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
33 Correct 50 ms 20596 KB Output is correct
34 Correct 85 ms 35492 KB Output is correct
35 Correct 77 ms 36212 KB Output is correct
36 Correct 85 ms 35516 KB Output is correct
37 Correct 93 ms 36020 KB Output is correct
38 Correct 80 ms 36412 KB Output is correct

Subtask #6
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 265 ms 16424 KB Output is correct
5 Correct 769 ms 35508 KB Output is correct
6 Correct 659 ms 6064 KB Output is correct
7 Correct 850 ms 35516 KB Output is correct
8 Correct 411 ms 12460 KB Output is correct
9 Correct 917 ms 35504 KB Output is correct
10 Correct 998 ms 36412 KB Output is correct
11 Correct 939 ms 36396 KB Output is correct
12 Correct 848 ms 36244 KB Output is correct
13 Correct 909 ms 35516 KB Output is correct
14 Correct 745 ms 35988 KB Output is correct
15 Correct 772 ms 36500 KB Output is correct
16 Correct 821 ms 36436 KB Output is correct
17 Correct 0 ms 208 KB Output is correct
18 Correct 0 ms 208 KB Output is correct
19 Correct 2 ms 208 KB Output is correct
20 Correct 2 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 3 ms 336 KB Output is correct
24 Correct 2 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 17 ms 592 KB Output is correct
28 Correct 19 ms 592 KB Output is correct
29 Correct 18 ms 592 KB Output is correct
30 Correct 18 ms 592 KB Output is correct
31 Correct 14 ms 592 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
33 Correct 50 ms 20596 KB Output is correct
34 Correct 85 ms 35492 KB Output is correct
35 Correct 77 ms 36212 KB Output is correct
36 Correct 85 ms 35516 KB Output is correct
37 Correct 93 ms 36020 KB Output is correct
38 Correct 80 ms 36412 KB Output is correct
39 Correct 0 ms 208 KB Output is correct
40 Correct 1 ms 208 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 210 ms 16536 KB Output is correct
43 Correct 726 ms 35400 KB Output is correct
44 Correct 685 ms 6052 KB Output is correct
45 Correct 777 ms 35508 KB Output is correct
46 Correct 515 ms 12368 KB Output is correct
47 Correct 963 ms 35476 KB Output is correct
48 Correct 882 ms 36376 KB Output is correct
49 Correct 827 ms 36284 KB Output is correct
50 Correct 927 ms 36244 KB Output is correct
51 Correct 951 ms 35516 KB Output is correct
52 Correct 987 ms 36016 KB Output is correct
53 Correct 917 ms 36412 KB Output is correct
54 Correct 879 ms 36412 KB Output is correct
55 Correct 0 ms 208 KB Output is correct
56 Incorrect 137 ms 35384 KB Output isn't correct
57 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Incorrect 165 ms 29080 KB Output isn't correct
4 Halted 0 ms 0 KB -