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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#489336 | #8819. CNOI Knowledge | LYY_yyyy | WA | 94ms | 24196kb | C++14 | 1.1kb | 2024-07-24 19:34:48 | 2024-07-24 19:34:49 |
Judging History
answer
#include<bits/stdc++.h>
#define pb emplace_back
#define lowbit(x) (x&(-x))
using namespace std;
unordered_map<unsigned long long,int> s;
const int base=1e9+7;
unsigned long long ha[1010],mi[1010];
int n;
int dp[1010],x[1010],idx;
int ask(int l,int r)
{
cout<<"? "<<l<<' '<<r<<endl;
int c;cin>>c;
return c;
}
inline int get_(int l,int r)
{
return ha[r]-ha[l-1]*mi[r-l+1];
}
inline void modify(int l,int r)
{
x[l]++;x[r+1]--;
}
int main()
{
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
cin>>n;mi[0]=1;
for(int i=1;i<=n;i++) mi[i]=mi[i-1]*base;
for(int i=1;i<=n;i++)
{
int l=1,r=i-1,ans=0;
while(l<=r)
{
int mid=l+r>>1;
if(ask(mid,i)-dp[mid]!=i-mid+1) ans=mid,l=mid+1;
else r=mid-1;
}
int p;
if(!ans) p=++idx;
else p=get_(ans,ans);
ha[i]=ha[i-1]*base+p;
memset(x,0,sizeof(x));
for(int j=i;j>=1;j--)
{
int op=get_(j,i);
modify(s[op]+1,j);
s[op]=j;
}
for(int j=1;j<=i;j++) x[j]+=x[j-1],dp[j]+=x[j];
}
cout<<"! ";
for(int i=1;i<=n;i++) cout<<get_(i,i)<<' ';
cout<<endl;
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3616kb
input:
12 3 6 6 10 10 15 10 21 15 27 20 14 6 9 20 34 43 19 9 5 2 25 8 5 25 9 19
output:
? 1 2 ? 1 3 ? 2 4 ? 1 4 ? 2 5 ? 1 5 ? 3 6 ? 1 6 ? 3 7 ? 1 7 ? 2 7 ? 4 8 ? 6 8 ? 5 8 ? 4 9 ? 2 9 ? 1 9 ? 5 10 ? 7 10 ? 8 10 ? 9 10 ? 5 11 ? 8 11 ? 9 11 ? 6 12 ? 9 12 ? 7 12 ! 1 2 3 4 5 6 2 5 7 7 5 6
result:
ok Accepted. 27 queries used.
Test #2:
score: -100
Wrong Answer
time: 94ms
memory: 24196kb
input:
1000 3 5 2 3 2 7 11 8 5 2 11 3 2 11 5 7 15 8 5 3 15 8 5 2 19 7 3 2 19 4 3 2 23 5 3 2 20 5 3 2 23 5 3 2 23 9 13 15 31 14 8 5 3 31 15 7 5 3 41 16 8 5 2 45 15 7 3 2 55 20 7 15 11 58 21 8 5 2 68 21 8 5 69 21 8 5 2 80 26 12 5 8 79 24 12 5 2 89 24 12 5 8 87 26 11 5 3 100 32 11 5 2 100 31 11 5 8 112 31 12 ...
output:
? 1 2 ? 1 3 ? 2 3 ? 2 4 ? 3 4 ? 2 5 ? 1 5 ? 3 6 ? 4 6 ? 5 6 ? 3 7 ? 5 7 ? 6 7 ? 4 8 ? 6 8 ? 5 8 ? 4 9 ? 6 9 ? 7 9 ? 8 9 ? 5 10 ? 7 10 ? 8 10 ? 9 10 ? 5 11 ? 8 11 ? 9 11 ? 10 11 ? 6 12 ? 9 12 ? 10 12 ? 11 12 ? 6 13 ? 9 13 ? 11 13 ? 12 13 ? 7 14 ? 10 14 ? 12 14 ? 13 14 ? 7 15 ? 11 15 ? 13 15 ? 14 15 ?...
result:
wrong answer Wrong Answer.