oj.uz

Submission #672717

# Submission time Handle Problem Language Result Execution time Memory
672717 2022-12-17T18:02:13 Z Makarooni Xylophone (JOI18_xylophone) C++14
100 / 100
 77 ms 456 KB 
#include "xylophone.h"
#include "bits/stdc++.h"
static int A[5001];

void solve(int N){
	int l = 1, r = N;
	bool use[N + 1];
	for(int i = 1; i <= N; i++)
		use[i] = 0;
	while(r - l > 1){
		int mid = (l + r) / 2;
		if(query(1, mid) == N - 1)
			r = mid;
		else
			l = mid;
	}
	A[r] = N;
	use[N] = 1;
	int x = query(r - 1, r);
	A[r - 1] = N - x;
	use[N - x] = 1;
	if(r != N){
		x = query(r, r + 1);
		A[r + 1] = N - x;
		use[N - x] = 1;
	}
	for(int i = r - 2; i >= 1; i--){
		x = query(i, i + 1);
		if(A[i + 1] - x <= 0){
			A[i] = A[i + 1] + x;
			use[A[i + 1] + x] = 1;
			continue;
		}
		if(A[i + 1] + x > N){
			A[i] = A[i + 1] - x;
			use[A[i + 1] - x] = 1;
			continue;
		}
		if(use[A[i + 1] + x]){
			A[i] = A[i + 1] - x;
			use[A[i + 1] - x] = 1;
			continue;
		}
		if(use[A[i + 1] - x]){
			A[i] = A[i + 1] + x;
			use[A[i + 1] + x] = 1;
			continue;
		}
		int z = query(i, i + 2), y = abs(A[i + 1] - A[i + 2]);
		if(!(z == x + y)){
			if(A[i + 2] > A[i + 1]){
				A[i] = A[i + 1] + x;
				use[A[i + 1] + x] = 1;
			}
			else{
				A[i] = A[i + 1] - x;
				use[A[i + 1] - x] = 1;
			}
		}
		else{
			if(A[i + 2] > A[i + 1]){
				A[i] = A[i + 1] - x;
				use[A[i + 1] - x] = 1;
			}
			else{
				A[i] = A[i + 1] + x;
				use[A[i + 1] + x] = 1;
			}
		}
	}
	for(int i = r + 2; i <= N; i++){
		x = query(i - 1, i);
		if(A[i - 1] - x <= 0){
			A[i] = A[i - 1] + x;
			use[A[i - 1] + x] = 1;
			continue;
		}
		if(A[i - 1] + x > N){
			A[i] = A[i - 1] - x;
			use[A[i - 1] - x] = 1;
			continue;
		}
		if(use[A[i - 1] - x]){
			A[i] = A[i - 1] + x;
			use[A[i - 1] + x] = 1;
			continue;
		}
		if(use[A[i - 1] - x]){
			A[i] = A[i - 1] + x;
			use[A[i - 1] + x] = 1;
			continue;
		}
		int z = query(i - 2, i), y = abs(A[i - 1] - A[i - 2]);
		if(!(z == x + y)){
			if(A[i - 2] > A[i - 1]){
				A[i] = A[i - 1] + x;
				use[A[i - 1] + x] = 1;
			}
			else{
				A[i] = A[i - 1] - x;
				use[A[i - 1] - x] = 1;
			}
		}
		else{
			if(A[i - 2] > A[i - 1]){
				A[i] = A[i - 1] - x;
				use[A[i - 1] - x] = 1;
			}
			else{
				A[i] = A[i - 1] + x;
				use[A[i - 1] + x] = 1;
			}
		}
	}
	for(int i = 1; i <= N; i++)
		answer(i, A[i]);
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 2 ms 288 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 2 ms 288 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 8 ms 208 KB Output is correct
20 Correct 6 ms 308 KB Output is correct
21 Correct 13 ms 208 KB Output is correct
22 Correct 13 ms 208 KB Output is correct
23 Correct 9 ms 208 KB Output is correct
24 Correct 10 ms 336 KB Output is correct
25 Correct 10 ms 300 KB Output is correct
26 Correct 11 ms 308 KB Output is correct
27 Correct 10 ms 208 KB Output is correct
28 Correct 15 ms 208 KB Output is correct
29 Correct 10 ms 208 KB Output is correct
30 Correct 14 ms 308 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 2 ms 288 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 2 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 2 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 8 ms 208 KB Output is correct
20 Correct 6 ms 308 KB Output is correct
21 Correct 13 ms 208 KB Output is correct
22 Correct 13 ms 208 KB Output is correct
23 Correct 9 ms 208 KB Output is correct
24 Correct 10 ms 336 KB Output is correct
25 Correct 10 ms 300 KB Output is correct
26 Correct 11 ms 308 KB Output is correct
27 Correct 10 ms 208 KB Output is correct
28 Correct 15 ms 208 KB Output is correct
29 Correct 10 ms 208 KB Output is correct
30 Correct 14 ms 308 KB Output is correct
31 Correct 33 ms 304 KB Output is correct
32 Correct 42 ms 292 KB Output is correct
33 Correct 67 ms 304 KB Output is correct
34 Correct 51 ms 300 KB Output is correct
35 Correct 43 ms 304 KB Output is correct
36 Correct 45 ms 300 KB Output is correct
37 Correct 48 ms 296 KB Output is correct
38 Correct 56 ms 308 KB Output is correct
39 Correct 67 ms 308 KB Output is correct
40 Correct 59 ms 296 KB Output is correct
41 Correct 47 ms 348 KB Output is correct
42 Correct 42 ms 312 KB Output is correct
43 Correct 35 ms 308 KB Output is correct
44 Correct 41 ms 456 KB Output is correct
45 Correct 35 ms 304 KB Output is correct
46 Correct 63 ms 424 KB Output is correct
47 Correct 77 ms 296 KB Output is correct
48 Correct 66 ms 300 KB Output is correct
49 Correct 66 ms 304 KB Output is correct
50 Correct 61 ms 304 KB Output is correct
51 Correct 24 ms 312 KB Output is correct
52 Correct 60 ms 316 KB Output is correct
53 Correct 70 ms 420 KB Output is correct
54 Correct 59 ms 300 KB Output is correct
55 Correct 57 ms 288 KB Output is correct
56 Correct 57 ms 312 KB Output is correct
57 Correct 41 ms 312 KB Output is correct
58 Correct 49 ms 308 KB Output is correct
59 Correct 56 ms 300 KB Output is correct
60 Correct 60 ms 304 KB Output is correct