| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1207647 | simona1230 | Packing Biscuits (IOI20_biscuits) | C++20 | 0 ms | 0 KiB |
#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
long long p[64],h[64];
long long ans,nd,b[64];
long long s[64];
void dfs(int i,long long curr)
{
//cout<<i<<" "<<curr<<endl;
ans++;
for(int j=i+1; j<60; j++)
{
if(curr+p[j]<=s[j]/nd)
dfs(j,curr+p[j]);
}
}
long long count_tastiness(long long x, std::vector<long long> a)
{
p[0]=1;
for(int i=1;i<60;i++)
p[i]=p[i-1]*2;
s[0]=a[0];
for(int i=1;i<60;i++)
{
//cout<<p[i]<<endl;
s[i]=s[i-1];
if(i<a.size())s[i]+=a[i]*p[i];
}
nd=x;
ans=0;
dfs(-1,0);
//cout<<ans<<endl;
////////////////////
long long sum=0;
p[0]=1;
for(long long i=1; i<=125; i++)
{
if(1e18/p[i-1]<2)p[i]=1e18+1;
else p[i]=p[i-1]*2;
//cout<<p[i]<<endl;
}
for(long long i=0;i<a.size();i++)
sum+=a[i]*p[i];
//cout<<sum/x<<endl;
long long ans1=1;
for(long long g=1;g<=sum/x;g++)
{
for(long long i=0;i<a.size();i++)
h[i]=a[i];
long long maxx=0,num=0;
while(num<x)
{
long long curr=g;
for(long long i=a.size()-1;i>=0;i--)
{
long long need=min(h[i],curr/p[i]);
h[i]-=need;
curr-=need*p[i];
}
if(curr!=0)break;
num++;
}
if(num==x)ans1++;
}
if(ans1!=ans)
{
cout<<x<<endl;
for(int i=0;i<a.size();i++)
cout<<a[i]<<" ";
cout<<endl;
exit(0);
}
return ans;
}
vector<long long> c(10);
void gen()
{
int k=5;
int x=rand()%5+2;
for(int i=0; i<k; i++)
c[i]=rand()%100;
cout<<count_tastiness(x,c)<<endl;
}
int main()
{
while(1)
{
gen();
}
}