#include<bits/stdc++.h>
#include<xylophone.h>
using namespace std;
int a[5005];
bool bio[5005];
int solve(int n)
{
int l=1;
int r=n;
int sol=n;
while(l<=r)
{
int mid=(l+r)/2;
if(query(1,mid)==n-1)
{
sol=mid;
r=mid-1;
}
else l=mid+1;
}
for(int i=1;i<=n;i++)bio[i]=false;
bio[n]=true;
a[sol]=n;bio[n]=true;
if(sol<n)a[sol+1]=n-query(sol,sol+1);
a[sol-1]=n-query(sol-1,sol);
for(int i=sol+2;i<=n;i++)
{
int maxx=max(a[i-1],a[i-2]);
int minn=min(a[i-1],a[i-2]);
int d1=query(i-2,i);
if(d1==maxx-minn)
{
if(a[i-1]==maxx)a[i]=maxx-query(i-1,i);
else a[i]=minn+query(i-1,i);
}
else
{
int br1=minn+d1;
int br2=maxx-d1;
if(br1>n || bio[br1])a[i]=br2;
else if(br2<1 || bio[br2])a[i]=br1;
else
{
int d2=query(i-1,i);
int num1=a[i-1]-d2;
int num2=a[i-1]+d2;
if(num1==br1 || num1==br2)a[i]=num1;
else a[i]=num2;
}
}
bio[a[i]]=true;
}
for(int i=sol-2;i>0;i--)
{
int maxx=max(a[i+1],a[i+2]);
int minn=min(a[i+1],a[i+2]);
int d1=query(i,i+2);
if(d1==maxx-minn)
{
if(a[i+1]==maxx)a[i]=maxx-query(i,i+1);
else a[i]=minn+query(i,i+1);
}
else
{
int br1=minn+d1;
int br2=maxx-d1;
if(br1>n || bio[br1])a[i]=br2;
else if(br2<1 || bio[br2])a[i]=br1;
else
{
int d2=query(i,i+1);
int num1=a[i+1]-d2;
int num2=a[i+1]+d2;
if(num1==br1 || num1==br2)a[i]=num1;
else a[i]=num2;
}
}
bio[a[i]]=true;
}
for(int i=1;i<=n;i++)answer(i,a[i]);
}
Compilation message
xylophone.cpp: In function 'int solve(int)':
xylophone.cpp:8:5: error: ambiguating new declaration of 'int solve(int)'
int solve(int n)
^~~~~
In file included from xylophone.cpp:2:0:
xylophone.h:3:6: note: old declaration 'void solve(int)'
void solve(int N);
^~~~~
xylophone.cpp:91:1: warning: no return statement in function returning non-void [-Wreturn-type]
}
^
