oj.uz

Submission #703035

# Submission time Handle Problem Language Result Execution time Memory
703035 2023-02-25T16:45:14 Z beepbeepsheep Xylophone (JOI18_xylophone) C++17
100 / 100
 67 ms 432 KB 
#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;
bool vis[5005];
int arr[5005];
#define ll long long
int eval(ll res, ll res2, ll a, ll b){
	if (a+res==b+res2){
		return 1;
	}
	if (a-res==b-res2){
		return -1;
	}
	if (res==res2){
		if (a<b) return 1;
		else return -1;
	}
	else{
		if (a<b) return 1;
		return -1;
	}
}
void solve(int N) {
	int l=1,r=N,m;
	while (l!=r-1){
		m=(l+r)>>1;
		if (query(m,N)==N-1) l=m;
		else r=m;
	}
	vis[1]=true;
	arr[l]=1;
	if (l==1){
		arr[2]=query(l,l+1)+1;
		vis[arr[2]]=true;
		for (int i=3;i<=N;i++){
			int res=query(i-1,i);
			if (arr[i-1]-res<1 || vis[arr[i-1]-res]){
				arr[i]=res+arr[i-1];
			} else if (res+arr[i-1]>N || vis[res+arr[i-1]]){
				arr[i]=arr[i-1]-res;
			} else{
				int res2=query(i-2,i);
				arr[i]=arr[i-1]+res*eval(res,res2,arr[i-1],arr[i-2]);
			}
			vis[arr[i]]=true;
		}
	}
	else{
		arr[l+1]=query(l,l+1)+1;
		arr[l-1]=query(l-1,l)+1;
		vis[arr[l+1]]=true;
		vis[arr[l-1]]=true;
		for (int i=l+2;i<=N;i++){
			int res=query(i-1,i);
			if (arr[i-1]-res<1 || vis[arr[i-1]-res]){
				arr[i]=res+arr[i-1];
			} else if (res+arr[i-1]>N || vis[res+arr[i-1]]){
				arr[i]=arr[i-1]-res;
			} else{
				int res2=query(i-2,i);
				arr[i]=arr[i-1]+res*eval(res,res2,arr[i-1],arr[i-2]);
			}
			vis[arr[i]]=true;
		}
		for (int i=l-2;i>=1;i--){
			int res=query(i,i+1);
			if (arr[i+1]-res<1 || vis[arr[i+1]-res]){
				arr[i]=res+arr[i+1];
			} else if (res+arr[i+1]>N || vis[res+arr[i+1]]){
				arr[i]=arr[i+1]-res;
			} else{
				int res2=query(i,i+2);
				arr[i]=arr[i+1]+res*eval(res,res2,arr[i+1],arr[i+2]);
			}
			vis[arr[i]]=true;
		}
	}
	//for (int i=1;i<=N;i++) cerr<<arr[i]<<' ';
	for (int i=1;i<=N;i++) answer(i,arr[i]);
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 2 ms 300 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 1 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 0 ms 208 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 2 ms 300 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 2 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 12 ms 304 KB Output is correct
19 Correct 12 ms 304 KB Output is correct
20 Correct 16 ms 292 KB Output is correct
21 Correct 12 ms 300 KB Output is correct
22 Correct 14 ms 208 KB Output is correct
23 Correct 8 ms 304 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 5 ms 360 KB Output is correct
26 Correct 14 ms 208 KB Output is correct
27 Correct 13 ms 208 KB Output is correct
28 Correct 13 ms 304 KB Output is correct
29 Correct 10 ms 304 KB Output is correct
30 Correct 9 ms 304 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 2 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 2 ms 208 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 2 ms 300 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 2 ms 208 KB Output is correct
17 Correct 5 ms 208 KB Output is correct
18 Correct 12 ms 304 KB Output is correct
19 Correct 12 ms 304 KB Output is correct
20 Correct 16 ms 292 KB Output is correct
21 Correct 12 ms 300 KB Output is correct
22 Correct 14 ms 208 KB Output is correct
23 Correct 8 ms 304 KB Output is correct
24 Correct 9 ms 208 KB Output is correct
25 Correct 5 ms 360 KB Output is correct
26 Correct 14 ms 208 KB Output is correct
27 Correct 13 ms 208 KB Output is correct
28 Correct 13 ms 304 KB Output is correct
29 Correct 10 ms 304 KB Output is correct
30 Correct 9 ms 304 KB Output is correct
31 Correct 28 ms 296 KB Output is correct
32 Correct 38 ms 316 KB Output is correct
33 Correct 47 ms 312 KB Output is correct
34 Correct 60 ms 304 KB Output is correct
35 Correct 56 ms 300 KB Output is correct
36 Correct 38 ms 304 KB Output is correct
37 Correct 32 ms 304 KB Output is correct
38 Correct 32 ms 304 KB Output is correct
39 Correct 57 ms 312 KB Output is correct
40 Correct 56 ms 304 KB Output is correct
41 Correct 61 ms 328 KB Output is correct
42 Correct 40 ms 308 KB Output is correct
43 Correct 50 ms 432 KB Output is correct
44 Correct 34 ms 300 KB Output is correct
45 Correct 43 ms 416 KB Output is correct
46 Correct 47 ms 308 KB Output is correct
47 Correct 67 ms 304 KB Output is correct
48 Correct 35 ms 308 KB Output is correct
49 Correct 59 ms 308 KB Output is correct
50 Correct 46 ms 296 KB Output is correct
51 Correct 67 ms 304 KB Output is correct
52 Correct 47 ms 328 KB Output is correct
53 Correct 58 ms 296 KB Output is correct
54 Correct 25 ms 336 KB Output is correct
55 Correct 48 ms 416 KB Output is correct
56 Correct 58 ms 328 KB Output is correct
57 Correct 59 ms 308 KB Output is correct
58 Correct 24 ms 336 KB Output is correct
59 Correct 27 ms 312 KB Output is correct
60 Correct 39 ms 328 KB Output is correct