답안 #702819

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
702819 2023-02-25T08:17:57 Z yhkhoo Xylophone (JOI18_xylophone) C++17
100 / 100
70 ms 668 KB
#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;

void solve(int N) {
	int A[N+1];
	//bs for 1
	int s=1, e=N-1;
	while(s!=e){
		int mid = (s+e+1)/2;
		if(query(mid, N) != N-1){
			e = mid-1;
		}
		else{
			s = mid;
		}
	}
	A[s] = 1;
	unordered_set<int> aset;
	aset.insert(1);
	if(s-1 != 0){
		A[s-1] = query(s-1, s)+1;
		aset.insert(A[s-1]);
	}
	for(int i=s-2; i>0; i--){ // go to the left
		int temp1 = query(i, i+1);
		if(A[i+1] - temp1 < 2 || aset.count(A[i+1] - temp1)){ // not possible to be less 
			A[i] = A[i+1] + temp1;
		}
		else if(A[i+1] + temp1 > N || aset.count(A[i+1] + temp1)){ // not possible to be more
			A[i] = A[i+1] - temp1;
		}
		else{ // can be both
			int temp2 = query(i, i+2);
			if(temp1 == temp2){ // A[i+2] is inbetween A[i+1] and A[i]
				if(A[i+2] > A[i+1]){
					A[i] = A[i+1] + temp1;
				}
				else{
					A[i] = A[i+1] - temp1;
				}
			}
			else{ // A[i+2] is outside of the range of A[i+1] and A[i]
				if(A[i+2] > A[i+1]){
					if(temp2 == A[i+2] - A[i+1]){ // A[i] is inbetween A[i+2] and A[i+1]
						A[i] = A[i+1] + temp1;
					}
					else{
						A[i] = A[i+1] - temp1;
					}
				}
				else{
					if(temp2 == A[i+1] - A[i+2]){ // A[i] is inbetween A[i+2] and A[i+1]
						A[i] = A[i+1] - temp1;
					}
					else{
						A[i] = A[i+1] + temp1;
					}
				}
			}
		}
		aset.insert(A[i]);
	}
	A[s+1] = query(s, s+1)+1;
	aset.insert(A[s+1]);
	for(int i=s+2; i<=N; i++){ // go to the right
		int temp1 = query(i-1, i);
		 	if(A[i-1] - temp1 < 2 || aset.count(A[i-1] - temp1)){ // not possible to be less 
			A[i] = A[i-1] + temp1;
		}
		else if(A[i-1] + temp1 > N || aset.count(A[i-1] + temp1)){ // not possible to be more
			A[i] = A[i-1] - temp1;
		}
		else{ // can be both
			int temp2 = query(i-2, i);
			if(temp1 == temp2){ // A[i-2] is inbetween A[i-1] and A[i]
				if(A[i-2] > A[i-1]){
					A[i] = A[i-1] + temp1;
				}
				else{
					A[i] = A[i-1] - temp1;
				}
			}
			else{ // A[i-2] is outside of the range of A[i-1] and A[i]
				if(A[i-2] > A[i-1]){
					if(temp2 == A[i-2] - A[i-1]){ // A[i] is inbetween A[i-2] and A[i-1]
						A[i] = A[i-1] + temp1;
					}
					else{
						A[i] = A[i-1] - temp1;
					}
				}
				else{
					if(temp2 == A[i-1] - A[i-2]){ // A[i] is inbetween A[i-2] and A[i-1]
						A[i] = A[i-1] - temp1;
					}
					else{
						A[i] = A[i-1] + temp1;
					}
				}
			}
		}
		aset.insert(A[i]);
	}
	
	for(int i = 1; i <= N; i++) {
		answer(i, A[i]);
	}
	
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 1 ms 432 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 2 ms 296 KB Output is correct
12 Correct 2 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 292 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 1 ms 432 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 2 ms 296 KB Output is correct
12 Correct 2 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 292 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 4 ms 312 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 11 ms 324 KB Output is correct
19 Correct 10 ms 316 KB Output is correct
20 Correct 13 ms 312 KB Output is correct
21 Correct 15 ms 208 KB Output is correct
22 Correct 17 ms 308 KB Output is correct
23 Correct 15 ms 320 KB Output is correct
24 Correct 9 ms 336 KB Output is correct
25 Correct 9 ms 328 KB Output is correct
26 Correct 10 ms 304 KB Output is correct
27 Correct 13 ms 328 KB Output is correct
28 Correct 13 ms 208 KB Output is correct
29 Correct 13 ms 312 KB Output is correct
30 Correct 13 ms 336 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 1 ms 432 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 2 ms 208 KB Output is correct
11 Correct 2 ms 296 KB Output is correct
12 Correct 2 ms 208 KB Output is correct
13 Correct 2 ms 208 KB Output is correct
14 Correct 2 ms 292 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 4 ms 312 KB Output is correct
17 Correct 7 ms 208 KB Output is correct
18 Correct 11 ms 324 KB Output is correct
19 Correct 10 ms 316 KB Output is correct
20 Correct 13 ms 312 KB Output is correct
21 Correct 15 ms 208 KB Output is correct
22 Correct 17 ms 308 KB Output is correct
23 Correct 15 ms 320 KB Output is correct
24 Correct 9 ms 336 KB Output is correct
25 Correct 9 ms 328 KB Output is correct
26 Correct 10 ms 304 KB Output is correct
27 Correct 13 ms 328 KB Output is correct
28 Correct 13 ms 208 KB Output is correct
29 Correct 13 ms 312 KB Output is correct
30 Correct 13 ms 336 KB Output is correct
31 Correct 20 ms 320 KB Output is correct
32 Correct 58 ms 340 KB Output is correct
33 Correct 52 ms 468 KB Output is correct
34 Correct 45 ms 440 KB Output is correct
35 Correct 54 ms 488 KB Output is correct
36 Correct 48 ms 476 KB Output is correct
37 Correct 24 ms 448 KB Output is correct
38 Correct 51 ms 488 KB Output is correct
39 Correct 42 ms 488 KB Output is correct
40 Correct 55 ms 464 KB Output is correct
41 Correct 61 ms 428 KB Output is correct
42 Correct 43 ms 476 KB Output is correct
43 Correct 30 ms 520 KB Output is correct
44 Correct 47 ms 448 KB Output is correct
45 Correct 64 ms 492 KB Output is correct
46 Correct 70 ms 456 KB Output is correct
47 Correct 62 ms 440 KB Output is correct
48 Correct 40 ms 500 KB Output is correct
49 Correct 67 ms 488 KB Output is correct
50 Correct 66 ms 484 KB Output is correct
51 Correct 63 ms 492 KB Output is correct
52 Correct 66 ms 472 KB Output is correct
53 Correct 59 ms 452 KB Output is correct
54 Correct 55 ms 472 KB Output is correct
55 Correct 58 ms 668 KB Output is correct
56 Correct 66 ms 460 KB Output is correct
57 Correct 54 ms 456 KB Output is correct
58 Correct 56 ms 460 KB Output is correct
59 Correct 70 ms 492 KB Output is correct
60 Correct 52 ms 444 KB Output is correct