Submission #871294

#	Time	Username	Problem	Language	Result	Execution time	Memory
871294		andrei_boaca	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1079 ms	500 KiB

biscuits

#include "biscuits.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
typedef long long ll;
ll f[65];
long long count_tastiness(long long x, std::vector<long long> a)
{
    for(int i=0;i<=60;i++)
        f[i]=0;
    ll suma=0;
    for(int i=0;i<a.size();i++)
    {
        f[i]=a[i];
        suma+=(1LL<<i)*a[i];
    }
    ll ans=0;
    for(ll p=0;p<=suma/x;p++)
    {
        bool ok=1;
        ll cnt=0;
        for(ll i=0;i<=60;i++)
        {
            cnt+=f[i];
            if((p>>i)&1)
            {
                if(cnt<x)
                {
                    ok=0;
                    break;
                }
                cnt-=x;
            }
            cnt/=2;
        }
        if(ok)
            ans++;
    }
    return ans;
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(int i=0;i<a.size();i++)
      |                 ~^~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23