This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#ifndef SKY
#include "biscuits.h"
#endif // SKY
using namespace std;
#define N 1010
#define ll long long
#define fs first
#define sc second
#define ii pair<int,int>
#define pb push_back
const int num_bit=60;
int n;
vector<ll>a;
map<ll,ll>mp[N];
ll m;
ll get(ll sl,int pos)
{
if(pos==num_bit)
return 1;
if(mp[pos].find(sl)!=mp[pos].end())
return mp[pos][sl];
ll res=get((sl+a[pos])/2,pos+1);
if(sl+a[pos]>0)
res+=get((sl+a[pos]-1)/2,pos+1);
return(mp[pos][sl]=res);
}
ll count_tastiness(ll cc, vector<ll> vec)
{
n=vec.size();
a=vec;
m=cc;
while(n<60)
a.pb(0),n++;
for(int i=0;i<num_bit;i++)
mp[i].clear();
return get(0,0);
}
#ifdef SKY
int main()
{
freopen("A.inp","r",stdin);
freopen("A.out","w",stdout);
ios::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
ll x,k;
cin>>x>>k;
vector<ll>a(k);
for(int i=0;i<k;i++)
cin>>a[i];
cout<<count_tastiness(x,a);
return 0;
}
#endif
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