Submission #425038

#	Time	Username	Problem	Language	Result	Execution time	Memory
425038		MOUF_MAHMALAT	Toys (CEOI18_toy)	C++14	Compilation error	0 ms	0 KiB

toy

#include<bits/stdc++.h>
#define all(s) s.begin(),s.end()
using namespace std;
typedef int ll;
ll n,x,to[50];
vector<ll>v;
map<ll,bool>mp;
set<ll>s;
void best(ll d,ll mask,ll k,bool is,ll sum)
{
    if(mask==(1<<n)-1)
    {
        sum+=k-1;
        if(b[sum]==0)
            b[sum]=1,s.insert(sum);
        return;
    }
    if(d==n)
        return void(best(0,mask,1,0,sum+k-1));
    if((1<<d)&mask)
        return void(best(d+1,mask,k,is,sum));
    best(d+1,(1<<d)|mask,k*v[d],1,sum);
    if(is)
        best(to[d],mask,k,1,sum);
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(ll i=2; i*i<=n; i++)
    {
        while(n%i==0)
            n/=i,v.push_back(i);
    }
    if(n>1)
        v.push_back(n);
    n=v.size();
    to[n-1]=n;
    for(ll i=n-2; i>=0; i--)
    {
        if(v[i]!=v[i+1])
            to[i]=i+1;
        else
            to[i]=to[i+1];
         //   cout<<to[i]<<" ";
    }
    best(0,0,1,0,0);
    cout<<s.size()<<endl;
    for(auto z:s)
        cout<<z<<" ";
    return 0;
}

Compilation message (stderr)

toy.cpp: In function 'void best(ll, ll, ll, bool, ll)':
toy.cpp:14:12: error: 'b' was not declared in this scope
   14 |         if(b[sum]==0)
      |            ^