oj.uz

Submission #1116493

# Submission time Handle Problem Language Result Execution time Memory
1116493 2024-11-21T17:38:37 Z pedroslrey Xylophone (JOI18_xylophone) C++17
100 / 100
 194 ms 960 KB 
#include <bits/stdc++.h>
#include "xylophone.h"

using namespace std;

vector<int> to_perm(vector<int> &raw) {
	int mini = 1e9;
	for (int x: raw) 
		mini = min(mini, x);

	vector<int> ans;
	for (int x: raw)
		ans.push_back(x - mini + 1);

	return ans;
}

void solve(int n) {
	vector<int> delta;

	for (int i = 1; i < n; ++i) 
		delta.push_back(query(i, i + 1));

	vector<bool> sign{false};
	for (int i = 1; i < n - 1; ++i) {
		int t = query(i, i + 2);

		if (delta[i-1] + delta[i] == t) sign.push_back(sign.back());
		else sign.push_back(!sign.back());
	}

	vector<int> raw{0};
	for (int i = 0; i < n-1; ++i)
		raw.push_back(raw.back() + delta[i]*(sign[i] ? 1 : -1));

	auto ps = to_perm(raw);

	for (int &x: raw) x = -x;

	auto qs = to_perm(raw);

	bool ansp = true;
	for (int i = 0; i < n; ++i)
		if (ps[i] == 1) break;
		else if (ps[i] == n) {
			ansp = false;
			break;
		}

	if (ansp) {
		for (int i = 0; i < n; ++i)
			answer(i + 1, ps[i]);
		return;
	}
	for (int i = 0; i < n; ++i)
		answer(i + 1, qs[i]);
}

Subtask #1
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 2 ms 336 KB Output is correct
4 Correct 3 ms 336 KB Output is correct
5 Correct 4 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 592 KB Output is correct
8 Correct 3 ms 436 KB Output is correct
9 Correct 4 ms 336 KB Output is correct
10 Correct 4 ms 440 KB Output is correct
11 Correct 4 ms 336 KB Output is correct
12 Correct 4 ms 336 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 4 ms 440 KB Output is correct
15 Correct 4 ms 336 KB Output is correct

Subtask #2
36.0 / 36.0

# 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 2 ms 336 KB Output is correct
4 Correct 3 ms 336 KB Output is correct
5 Correct 4 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 592 KB Output is correct
8 Correct 3 ms 436 KB Output is correct
9 Correct 4 ms 336 KB Output is correct
10 Correct 4 ms 440 KB Output is correct
11 Correct 4 ms 336 KB Output is correct
12 Correct 4 ms 336 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 4 ms 440 KB Output is correct
15 Correct 4 ms 336 KB Output is correct
16 Correct 5 ms 336 KB Output is correct
17 Correct 15 ms 436 KB Output is correct
18 Correct 24 ms 592 KB Output is correct
19 Correct 36 ms 448 KB Output is correct
20 Correct 28 ms 336 KB Output is correct
21 Correct 26 ms 336 KB Output is correct
22 Correct 28 ms 444 KB Output is correct
23 Correct 24 ms 436 KB Output is correct
24 Correct 28 ms 584 KB Output is correct
25 Correct 34 ms 436 KB Output is correct
26 Correct 25 ms 336 KB Output is correct
27 Correct 29 ms 336 KB Output is correct
28 Correct 29 ms 336 KB Output is correct
29 Correct 35 ms 592 KB Output is correct
30 Correct 28 ms 336 KB Output is correct

Subtask #3
53.0 / 53.0

# 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 2 ms 336 KB Output is correct
4 Correct 3 ms 336 KB Output is correct
5 Correct 4 ms 336 KB Output is correct
6 Correct 4 ms 336 KB Output is correct
7 Correct 4 ms 592 KB Output is correct
8 Correct 3 ms 436 KB Output is correct
9 Correct 4 ms 336 KB Output is correct
10 Correct 4 ms 440 KB Output is correct
11 Correct 4 ms 336 KB Output is correct
12 Correct 4 ms 336 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 4 ms 440 KB Output is correct
15 Correct 4 ms 336 KB Output is correct
16 Correct 5 ms 336 KB Output is correct
17 Correct 15 ms 436 KB Output is correct
18 Correct 24 ms 592 KB Output is correct
19 Correct 36 ms 448 KB Output is correct
20 Correct 28 ms 336 KB Output is correct
21 Correct 26 ms 336 KB Output is correct
22 Correct 28 ms 444 KB Output is correct
23 Correct 24 ms 436 KB Output is correct
24 Correct 28 ms 584 KB Output is correct
25 Correct 34 ms 436 KB Output is correct
26 Correct 25 ms 336 KB Output is correct
27 Correct 29 ms 336 KB Output is correct
28 Correct 29 ms 336 KB Output is correct
29 Correct 35 ms 592 KB Output is correct
30 Correct 28 ms 336 KB Output is correct
31 Correct 60 ms 848 KB Output is correct
32 Correct 105 ms 584 KB Output is correct
33 Correct 163 ms 616 KB Output is correct
34 Correct 179 ms 952 KB Output is correct
35 Correct 186 ms 584 KB Output is correct
36 Correct 182 ms 692 KB Output is correct
37 Correct 170 ms 480 KB Output is correct
38 Correct 181 ms 584 KB Output is correct
39 Correct 167 ms 712 KB Output is correct
40 Correct 190 ms 840 KB Output is correct
41 Correct 181 ms 600 KB Output is correct
42 Correct 179 ms 864 KB Output is correct
43 Correct 154 ms 692 KB Output is correct
44 Correct 194 ms 584 KB Output is correct
45 Correct 183 ms 716 KB Output is correct
46 Correct 177 ms 700 KB Output is correct
47 Correct 172 ms 840 KB Output is correct
48 Correct 169 ms 592 KB Output is correct
49 Correct 181 ms 336 KB Output is correct
50 Correct 190 ms 336 KB Output is correct
51 Correct 177 ms 712 KB Output is correct
52 Correct 194 ms 696 KB Output is correct
53 Correct 172 ms 960 KB Output is correct
54 Correct 170 ms 704 KB Output is correct
55 Correct 174 ms 712 KB Output is correct
56 Correct 161 ms 716 KB Output is correct
57 Correct 176 ms 696 KB Output is correct
58 Correct 186 ms 600 KB Output is correct
59 Correct 176 ms 696 KB Output is correct
60 Correct 170 ms 696 KB Output is correct