QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#488801#8819. CNOI KnowledgeczcWA 65ms22464kbC++14989b2024-07-24 15:26:282024-07-24 15:26:30

Judging History

你现在查看的是最新测评结果

  • [2024-07-24 15:26:30]
  • 评测
  • 测评结果:WA
  • 用时:65ms
  • 内存:22464kb
  • [2024-07-24 15:26:28]
  • 提交

answer

#include<bits/stdc++.h>
#define ull unsigned long long
const ull p=131;
using namespace std;
int n;
inline int ask(int l,int r){
	cout<<"? "<<l<<" "<<r<<endl;
	int x; cin>>x;
	return x;
}
unordered_map<ull,int> mp;
const int maxn=1e3+5;
int s[maxn],cnt[maxn],tot;
ull h[maxn],pw[maxn];
inline int get(int l,int r){
	int ret=0;
	for(int i=l;i<=r;i++) ret+=cnt[i];
	return ret;
}
int main(){
	cin>>n;
	pw[0]=1;
	for(int i=1;i<=n;i++) pw[i]=pw[i-1]*p;
	for(int i=1;i<=n;i++){
		if(i==1 || get(1,i-1)+i==ask(1,i)){
			s[i]=++tot;
		}
		else{
			int l=2,r=i;
			while(l<r){
				int mid=(l+r)>>1;
				if(ask(mid,i-1)+(i-mid+1)==ask(mid,i)) r=mid;
				else l=mid+1;
			}
			s[i]=s[l-1];
		}
		h[i]=h[i-1]*p+(ull)s[i];
		for(int j=1;j<=i;j++){
			if(!mp[h[i]-h[j-1]*pw[i-j+1]]){
				mp[h[i]-h[j-1]*pw[i-j+1]]=1;
				cnt[j]++;
			}
		}
	}
	cout<<"! ";
	for(int i=1;i<=n;i++) cout<<s[i]<<" ";
	cout<<endl;
	return 0;
}
/*
1 2 3 4 5 6 2 5 7 7 2 6
*/

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3532kb

input:

12
3
6
10
15
21
27
6
10
10
15
15
20
34
6
9
1
3
3
6
43
52
10
14
3
5
1
2
62
14
19
2
5
5
8
72
13
19
33
40
19
25

output:

? 1 2
? 1 3
? 1 4
? 1 5
? 1 6
? 1 7
? 4 6
? 4 7
? 3 6
? 3 7
? 2 6
? 2 7
? 1 8
? 5 7
? 5 8
? 7 7
? 7 8
? 6 7
? 6 8
? 1 9
? 1 10
? 6 9
? 6 10
? 8 9
? 8 10
? 9 9
? 9 10
? 1 11
? 6 10
? 6 11
? 9 10
? 9 11
? 8 10
? 8 11
? 1 12
? 7 11
? 7 12
? 4 11
? 4 12
? 6 11
? 6 12
! 1 2 3 4 5 6 2 5 7 7 5 6 

result:

ok Accepted. 41 queries used.

Test #2:

score: -100
Wrong Answer
time: 65ms
memory: 22464kb

input:

1000
3
5
1
2
7
1
2
11
2
5
3
7
16
3
5
1
2
21
5
7
1
2
27
3
7
11
16
7
11
34
7
11
3
5
1
3
41
8
11
3
5
1
2
48
11
15
2
3
1
2
57
11
14
2
3
1
2
66
14
17
3
4
1
2
75
11
13
3
4
1
2
84
13
15
3
4
1
2
96
7
15
39
47
23
31
15
23
108
15
23
7
11
3
5
1
3
124
20
27
8
11
3
5
1
3
140
27
36
7
11
3
5
1
2
156
31
39
8
11
2
3...

output:

? 1 2
? 1 3
? 2 2
? 2 3
? 1 4
? 3 3
? 3 4
? 1 5
? 3 4
? 3 5
? 2 4
? 2 5
? 1 6
? 4 5
? 4 6
? 5 5
? 5 6
? 1 7
? 4 6
? 4 7
? 6 6
? 6 7
? 1 8
? 5 7
? 5 8
? 3 7
? 3 8
? 4 7
? 4 8
? 1 9
? 5 8
? 5 9
? 7 8
? 7 9
? 8 8
? 8 9
? 1 10
? 6 9
? 6 10
? 8 9
? 8 10
? 9 9
? 9 10
? 1 11
? 6 10
? 6 11
? 9 10
? 9 11
? 1...

result:

wrong answer Too many queries.