제출 #1207644

#제출 시각아이디문제언어결과실행 시간메모리
1207644simona1230비스킷 담기 (IOI20_biscuits)C++20
0 / 100
1095 ms328 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+nd*p[j]<=s[j])
            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;
}
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