#include <cstdio>
#include <vector>
#include <cstdlib>
#include <cstring>
using namespace std;
void Solve(int N);
namespace {
struct Judge
{
int N;
int A[1002];
int pos[1002];
bool f[1002];
int query_c;
bool answered;
void init()
{
query_c=0;
int ret=scanf("%d",&N); ret++;
answered=false;
for(int i=0;i<N;i++)ret=scanf("%d",&A[i]),pos[A[i]]=i;
}
int query(const vector<int>& M)
{
if(query_c==20000)
{
puts("Wrong Answer [3]");
exit(0);
}
if(int(M.size())!=N)
{
puts("Wrong Answer [1]");
exit(0);
}
bool all_zero=true;
for(int i=0;i<N;i++)
{
if(M[i]!=0&&M[i]!=1)
{
puts("Wrong Answer [2]");
exit(0);
}
if(M[i]==1)all_zero=false;
}
if(all_zero)
{
puts("Wrong Answer [2]");
exit(0);
}
memset(f,0,sizeof(f));
for(int i=0;i<N;i++)if(M[i])f[pos[i+1]]=true;
bool las=false;
int r=0;
for(int i=0;i<N;i++)
{
if(las==false&&f[i]==true)r++;
las=f[i];
}
query_c++;
return r;
}
void answer(const vector<int>& res)
{
bool f1=true,f2=true;
if(int(res.size())!=N)
{
puts("Wrong Answer [4]");
exit(0);
}
if(answered)
{
puts("Wrong Answer [7]");
exit(0);
}
answered=true;
memset(f,0,sizeof(f));
for(int i=0;i<N;i++)
{
if(res[i]<=0||res[i]>N)
{
puts("Wrong Answer [5]");
exit(0);
}
if(f[res[i]])
{
puts("Wrong Answer [6]");
exit(0);
}
f[res[i]]=true;
}
for(int i=0;i<N;i++)
{
f1&=A[i]==res[i];
f2&=A[i]==res[N-i-1];
}
if(!f1&&!f2)
{
puts("Wrong Answer [8]");
exit(0);
}
}
void end()
{
if(!answered)puts("Wrong Answer [7]");
else printf("Accepted : %d\n",query_c);
}
}judge;
}
int Query(const vector<int>& M)
{
return judge.query(M);
}
void Answer(const vector<int>& res)
{
judge.answer(res);
}
int main()
{
judge.init();
Solve(judge.N);
judge.end();
}
#include<bits/stdc++.h>
using namespace std;
#define N 1005
bitset<N> vis;
vector<int> now,ans;
void Solve(int n){
if(n==1){
ans.push_back(1);
Answer(ans);
return ;
}
int i,sz,x,y,head,l,r,mid,cnt;
now.resize(n);
for(i=0;i<n;i++)now[i]=1;
for(i=0;i<n;i++){
now[i]=0;
x=Query(now);
now[i]=1;
if(x==1){head=i;break;}
}
for(i=0;i<n;i++)now[i]=0;
vis[head]=true;
ans.push_back(head+1);
for(sz=n-1;sz>0;sz--){
l=1,r=sz;
while(l<r){
mid=(l+r)/2;
for(i=0,cnt=0;i<n&&cnt<mid;i++)if(!vis[i])now[i]=1,cnt++;
x=Query(now);
now[head]=1;
y=Query(now);
now[head]=0;
for(i=0,cnt=0;i<n&&cnt<mid;i++)if(!vis[i])now[i]=0,cnt++;
if(x==y)r=mid;
else l=mid+1;
}
for(i=0,cnt=0;i<n&&cnt<l;i++)if(!vis[i])cnt++;
ans.push_back(i);
head=i-1;
vis[head]=true;
}
Answer(ans);
return ;
}
Compilation message
library.cpp: In function 'void Solve(int)':
library.cpp:151:23: warning: 'head' may be used uninitialized in this function [-Wmaybe-uninitialized]
151 | ans.push_back(head+1);
| ~~~~^~
/usr/bin/ld: /tmp/ccLu3q9Q.o: in function `Query(std::vector<int, std::allocator<int> > const&)':
library.cpp:(.text+0x0): multiple definition of `Query(std::vector<int, std::allocator<int> > const&)'; /tmp/ccSrRqoU.o:grader.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccLu3q9Q.o: in function `Answer(std::vector<int, std::allocator<int> > const&)':
library.cpp:(.text+0x180): multiple definition of `Answer(std::vector<int, std::allocator<int> > const&)'; /tmp/ccSrRqoU.o:grader.cpp:(.text+0x20): first defined here
/usr/bin/ld: /tmp/ccLu3q9Q.o: in function `main':
library.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccSrRqoU.o:grader.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status
