oj.uz

Submission #759660

# Submission time Handle Problem Language Result Execution time Memory
759660 2023-06-16T14:03:04 Z Bula Xylophone (JOI18_xylophone) C++14
100 / 100
 46 ms 336 KB 
#include "xylophone.h"
#include<bits/stdc++.h>
using namespace std;

//#define int long long
const int mod=1e9+7;

void solve(int n){
	int id1=0,l=1,r=n;
	while(l<=r){
		int mid=(l+r)/2;
		int x=query(mid,n);

		if (x==n-1) {
			id1=mid;
			l=mid+1;
		}else{
			r=mid-1;
		}
	}
	int idn=0;
	l=id1+1;
	r=n;
	while(l<=r){
		int mid=(l+r)/2;
		int x=query(id1,mid); 
		
		if (x==n-1) {
			idn=mid;
			r=mid-1;
		}else{
			l=mid+1;
		}
	}
	
	vector<int> vis(n+1,0),ans(n+1,0);
	vis[1]=1;
	vis[n]=1;
	ans[id1]=1;
	ans[idn]=n;
	
	for(int i=id1-1;i>=1;i--){
		int q=query(i,i+1);
		
		int a=ans[i+1]+q;
		int b=ans[i+1]-q;
		
		if(b<=0 || vis[b]==1){
			ans[i]=a;
			vis[a]=1;
		}else if(a>n || vis[a]==1){
			ans[i]=b;
			vis[b]=1;
		}else{
			int x=query(i,i+2);
			int mx=max(a,max(ans[i+1],ans[i+2]));
			int mn=min(a,min(ans[i+1],ans[i+2]));
			if(x==mx-mn){
				ans[i]=a;
				vis[a]=1;
			}else{
				ans[i]=b;
				vis[b]=1;
			}
		}
	}
	
	for(int i=idn-1;i>id1;i--){
		int q=query(i,i+1);
		
		int a=ans[i+1]+q;
		int b=ans[i+1]-q;
		
		if(b<=0 || vis[b]==1){
			ans[i]=a;
			vis[a]=1;
		}else if(a>n || vis[a]==1){
			ans[i]=b;
			vis[b]=1;
		}else{
			int x=query(i,i+2);
			int mx=max(a,max(ans[i+1],ans[i+2]));
			int mn=min(a,min(ans[i+1],ans[i+2]));
			if(x==mx-mn){
				ans[i]=a;
				vis[a]=1;
			}else{
				ans[i]=b;
				vis[b]=1;
			}
		}
	}
	
	for(int i=idn+1;i<=n;i++){
		int q=query(i-1,i);
		
		int a=ans[i-1]+q;
		int b=ans[i-1]-q;
		
		if(b<=0 || vis[b]==1){
			ans[i]=a;
			vis[a]=1;
		}else if(a>n || vis[a]==1){
			ans[i]=b;
			vis[b]=1;
		}else{
			int x=query(i-2,i);
			int mx=max(a,max(ans[i-1],ans[i-2]));
			int mn=min(a,min(ans[i-1],ans[i-2]));
			if(x==mx-mn){
				ans[i]=a;
				vis[a]=1;
			}else{
				ans[i]=b;
				vis[b]=1;
			}
		}
	}
	for(int i=1;i<=n;i++) answer(i,ans[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 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 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 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 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 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 1 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 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 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 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 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 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 2 ms 208 KB Output is correct
17 Correct 3 ms 208 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 7 ms 308 KB Output is correct
20 Correct 9 ms 308 KB Output is correct
21 Correct 5 ms 300 KB Output is correct
22 Correct 9 ms 208 KB Output is correct
23 Correct 9 ms 304 KB Output is correct
24 Correct 7 ms 208 KB Output is correct
25 Correct 8 ms 208 KB Output is correct
26 Correct 9 ms 208 KB Output is correct
27 Correct 9 ms 208 KB Output is correct
28 Correct 11 ms 304 KB Output is correct
29 Correct 9 ms 208 KB Output is correct
30 Correct 7 ms 208 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 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 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 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 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 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 2 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 2 ms 208 KB Output is correct
17 Correct 3 ms 208 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 7 ms 308 KB Output is correct
20 Correct 9 ms 308 KB Output is correct
21 Correct 5 ms 300 KB Output is correct
22 Correct 9 ms 208 KB Output is correct
23 Correct 9 ms 304 KB Output is correct
24 Correct 7 ms 208 KB Output is correct
25 Correct 8 ms 208 KB Output is correct
26 Correct 9 ms 208 KB Output is correct
27 Correct 9 ms 208 KB Output is correct
28 Correct 11 ms 304 KB Output is correct
29 Correct 9 ms 208 KB Output is correct
30 Correct 7 ms 208 KB Output is correct
31 Correct 14 ms 296 KB Output is correct
32 Correct 31 ms 208 KB Output is correct
33 Correct 36 ms 324 KB Output is correct
34 Correct 37 ms 336 KB Output is correct
35 Correct 39 ms 336 KB Output is correct
36 Correct 28 ms 316 KB Output is correct
37 Correct 29 ms 316 KB Output is correct
38 Correct 31 ms 328 KB Output is correct
39 Correct 22 ms 320 KB Output is correct
40 Correct 42 ms 328 KB Output is correct
41 Correct 22 ms 336 KB Output is correct
42 Correct 29 ms 336 KB Output is correct
43 Correct 24 ms 328 KB Output is correct
44 Correct 31 ms 336 KB Output is correct
45 Correct 44 ms 328 KB Output is correct
46 Correct 34 ms 336 KB Output is correct
47 Correct 39 ms 336 KB Output is correct
48 Correct 45 ms 336 KB Output is correct
49 Correct 46 ms 316 KB Output is correct
50 Correct 46 ms 336 KB Output is correct
51 Correct 44 ms 336 KB Output is correct
52 Correct 42 ms 336 KB Output is correct
53 Correct 25 ms 336 KB Output is correct
54 Correct 43 ms 336 KB Output is correct
55 Correct 39 ms 328 KB Output is correct
56 Correct 31 ms 336 KB Output is correct
57 Correct 37 ms 328 KB Output is correct
58 Correct 22 ms 328 KB Output is correct
59 Correct 44 ms 336 KB Output is correct
60 Correct 40 ms 332 KB Output is correct