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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#488724 | #8819. CNOI Knowledge | zyxawa | TL | 0ms | 0kb | C++14 | 685b | 2024-07-24 14:39:18 | 2024-07-24 14:39:19 |
answer
#include<bits/stdc++.h>
using namespace std;
int n,x,s[1001],v[1001],a[1001];
unsigned long long val;
map <unsigned long long,int> lst;
int ask(int l,int r){
printf("? %d %d\n",l,r);
scanf("%d",&x);
return x;
}
int main(){
scanf("%d",&n);
for(int i=2;i<=n;i++){
memset(a,0,sizeof(a));
int l=1,r=i;
while(l<r){
int mid=(l+r)/2;
if(ask(mid,i)!=v[mid]+i-mid+1) l=mid+1;
else r=mid;
}
s[i]=l>1?s[l-1]:i,val=0;
for(int j=i;j>=1;j--) val=val*13131+s[j],a[lst[val]+1]++,a[j+1]--,lst[val]=j;
for(int j=1;j<=i;j++) a[j]+=a[j-1];
for(int j=1;j<=i;j++) v[j]+=a[j];
}
printf("! ");
for(int i=1;i<=n;i++) printf("%d ",s[i]);
return 0;
}
Details
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Test #1:
score: 0
Time Limit Exceeded
input:
12