oj.uz

Submission #959612

# Submission time Handle Problem Language Result Execution time Memory
959612 2024-04-08T13:44:22 Z LCJLY Xylophone (JOI18_xylophone) C++14
100 / 100
 45 ms 928 KB 
#include "xylophone.h"
#include <bits/stdc++.h>
using namespace std;

#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<long long,int>pii;
typedef pair<pii,pii>pi2;

void solve(int n) {
	//find index of value 1
	int l=1;
	int r=n;
	int mid;
	int one=1;
	
	while(l<=r){
		mid=(l+r)/2;
		int hold=query(mid,n);
		if(hold==n-1){
			one=mid;
			l=mid+1;;
		}
		else r=mid-1;
	}
	
	int ans[n+5];
	memset(ans,-1,sizeof(ans));
	ans[one]=1;
	
	set<int>se;
	for(int x=2;x<=n;x++){
		se.insert(x);
	}
	
	//neighbour values
	if(one>1){
		ans[one-1]=1+query(one-1,one);
		se.erase(ans[one-1]);
	}
	if(one<n){
		ans[one+1]=1+query(one,one+1);
		se.erase(ans[one+1]);
	}
	
	int st=1;
	int ed=n;
	
	if(one==1){
		ed=n-1;
	}
	else st=2;
	
	//recover other values
	for(int x=one-2;x>=st;x--){
		int a=query(x,x+1);
		if(se.find(ans[x+1]+a)==se.end()&&se.find(ans[x+1]-a)!=se.end()){
			ans[x]=ans[x+1]-a;
			se.erase(ans[x]);
			continue;
		}
		if(se.find(ans[x+1]+a)!=se.end()&&se.find(ans[x+1]-a)==se.end()){
			ans[x]=ans[x+1]+a;
			se.erase(ans[x]);
			continue;
		}
			
		int b=query(x,x+2);
		int diff=abs(ans[x+1]-ans[x+2]);
		if(b==diff&&a<b){
			//mid
			if(ans[x+1]>ans[x+2]){
				ans[x]=ans[x+1]-a;
			}
			else{
				ans[x]=ans[x+1]+a;
			}
		}
		else if(a==b){
			if(ans[x+1]>ans[x+2]){
				ans[x]=ans[x+1]-a;
			}
			else{
				ans[x]=ans[x+1]+a;
			}
		}
		else if(a>b){
			if(ans[x+1]>ans[x+2]){
				ans[x]=ans[x+1]-a;
			}
			else{
				ans[x]=ans[x+1]+a;
			}
		}
		else{
			if(ans[x+2]>ans[x+1]){
				ans[x]=ans[x+1]-a;
			}
			else{
				ans[x]=ans[x+1]+a;
			}
		}
		se.erase(ans[x]);
	}	
	
	for(int x=one+2;x<=ed;x++){
		int a=query(x-1,x);
		if(se.find(ans[x-1]+a)==se.end()&&se.find(ans[x-1]-a)!=se.end()){
			ans[x]=ans[x-1]-a;
			se.erase(ans[x]);
			continue;
		}
		if(se.find(ans[x-1]+a)!=se.end()&&se.find(ans[x-1]-a)==se.end()){
			ans[x]=ans[x-1]+a;
			se.erase(ans[x]);
			continue;
		}
		int b=query(x-2,x);
		int diff=abs(ans[x-1]-ans[x-2]);
		if(b==diff&&a<b){
			//mid
			if(ans[x-1]>ans[x-2]){
				ans[x]=ans[x-1]-a;
			}
			else{
				ans[x]=ans[x-1]+a;
			}
		}
		else if(a==b){
			if(ans[x-1]>ans[x-2]){
				ans[x]=ans[x-1]-a;
			}
			else{
				ans[x]=ans[x-1]+a;
			}
		}
		else if(a>b){
			if(ans[x-1]>ans[x-2]){
				ans[x]=ans[x-1]-a;
			}
			else{
				ans[x]=ans[x-1]+a;
			}
		}
		else{
			if(ans[x-2]>ans[x-1]){
				ans[x]=ans[x-1]-a;
			}
			else{
				ans[x]=ans[x-1]+a;
			}
		}
		se.erase(ans[x]);
	}	

	for(int x=1;x<=n;x++){
		if(ans[x]==-1) ans[x]=*se.begin();
		answer(x,ans[x]);
	}
}

//code

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 436 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 440 KB Output is correct
11 Correct 1 ms 436 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 ms 432 KB Output is correct
15 Correct 1 ms 684 KB Output is correct

Subtask #2
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 436 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 440 KB Output is correct
11 Correct 1 ms 436 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 ms 432 KB Output is correct
15 Correct 1 ms 684 KB Output is correct
16 Correct 2 ms 436 KB Output is correct
17 Correct 4 ms 692 KB Output is correct
18 Correct 5 ms 436 KB Output is correct
19 Correct 7 ms 692 KB Output is correct
20 Correct 7 ms 692 KB Output is correct
21 Correct 5 ms 488 KB Output is correct
22 Correct 6 ms 692 KB Output is correct
23 Correct 5 ms 488 KB Output is correct
24 Correct 4 ms 436 KB Output is correct
25 Correct 5 ms 484 KB Output is correct
26 Correct 7 ms 692 KB Output is correct
27 Correct 6 ms 436 KB Output is correct
28 Correct 6 ms 484 KB Output is correct
29 Correct 7 ms 696 KB Output is correct
30 Correct 5 ms 692 KB Output is correct

Subtask #3
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 436 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 1 ms 440 KB Output is correct
11 Correct 1 ms 436 KB Output is correct
12 Correct 1 ms 436 KB Output is correct
13 Correct 1 ms 436 KB Output is correct
14 Correct 1 ms 432 KB Output is correct
15 Correct 1 ms 684 KB Output is correct
16 Correct 2 ms 436 KB Output is correct
17 Correct 4 ms 692 KB Output is correct
18 Correct 5 ms 436 KB Output is correct
19 Correct 7 ms 692 KB Output is correct
20 Correct 7 ms 692 KB Output is correct
21 Correct 5 ms 488 KB Output is correct
22 Correct 6 ms 692 KB Output is correct
23 Correct 5 ms 488 KB Output is correct
24 Correct 4 ms 436 KB Output is correct
25 Correct 5 ms 484 KB Output is correct
26 Correct 7 ms 692 KB Output is correct
27 Correct 6 ms 436 KB Output is correct
28 Correct 6 ms 484 KB Output is correct
29 Correct 7 ms 696 KB Output is correct
30 Correct 5 ms 692 KB Output is correct
31 Correct 16 ms 600 KB Output is correct
32 Correct 18 ms 568 KB Output is correct
33 Correct 27 ms 632 KB Output is correct
34 Correct 41 ms 664 KB Output is correct
35 Correct 45 ms 436 KB Output is correct
36 Correct 28 ms 684 KB Output is correct
37 Correct 25 ms 660 KB Output is correct
38 Correct 22 ms 676 KB Output is correct
39 Correct 38 ms 660 KB Output is correct
40 Correct 38 ms 664 KB Output is correct
41 Correct 36 ms 664 KB Output is correct
42 Correct 29 ms 664 KB Output is correct
43 Correct 25 ms 672 KB Output is correct
44 Correct 27 ms 680 KB Output is correct
45 Correct 34 ms 912 KB Output is correct
46 Correct 35 ms 688 KB Output is correct
47 Correct 38 ms 668 KB Output is correct
48 Correct 41 ms 660 KB Output is correct
49 Correct 41 ms 664 KB Output is correct
50 Correct 38 ms 664 KB Output is correct
51 Correct 32 ms 684 KB Output is correct
52 Correct 39 ms 664 KB Output is correct
53 Correct 37 ms 688 KB Output is correct
54 Correct 33 ms 668 KB Output is correct
55 Correct 37 ms 684 KB Output is correct
56 Correct 36 ms 664 KB Output is correct
57 Correct 35 ms 668 KB Output is correct
58 Correct 35 ms 664 KB Output is correct
59 Correct 39 ms 664 KB Output is correct
60 Correct 36 ms 928 KB Output is correct