Submission #725995

#	Time	Username	Problem	Language	Result	Execution time	Memory
725995		NemanjaSo2005	Packing Biscuits (IOI20_biscuits)	C++14	21 / 100	1032 ms	340 KiB

biscuits

#include "biscuits.h"
#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll koll[65],treba[65],tmp[65],K,X;
string A;
string ubin(int x){
   string ret="";
   while(x){
      if(x%2==1)
         ret.push_back(1);
      else
         ret.push_back(0);
      x/=2;
   }
   //reverse(ret.begin(),ret.end());
   return ret;
}
bool mozeli(int koji){
   A=ubin(koji);
   int N=A.size();
   for(int i=0;i<A.size();i++)
      treba[i+1]=A[i]*X;
   for(int i=1;i<=N;i++)
      tmp[i]=koll[i];
   for(int i=1;i<=N;i++){
      if(treba[i]>tmp[i])
         return false;
      tmp[i]-=treba[i];
      tmp[i+1]+=tmp[i]/2;
   }
   return true;
}
ll subtsk1(ll x,vector<ll> a){
   memset(koll,0,sizeof(koll));
   memset(treba,0,sizeof(treba));
   memset(tmp,0,sizeof(tmp));
   K=a.size();
   X=x;
   for(int i=1;i<=K;i++)
      koll[i]=a[i-1];
   ll res=0;
   for(int i=0;i<=100000;i++){
      res+=mozeli(i);
   }
   return res;
}

#include "biscuits.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const int MaxK=60;
ll res,br,kol[MaxK*4],stepen[MaxK*4],del;
ll count_tastiness(ll x,vector<ll> A){
   if(x!=1)
      return subtsk1(x,A);
   stepen[0]=1;
   for(int i=1;i<=MaxK;i++)
      stepen[i]=stepen[i-1]*2;
   for(int i=MaxK+1;i<MaxK*4;i++)
      stepen[i]=1;
   br=x;
   K=A.size();
   for(int i=0;i<K;i++)
      kol[i]=A[i];
   for(int i=K;i<4*MaxK;i++)
      kol[i]=0;
   res=1;
   ll br=0,maks=0;
   del=1;
   for(int i=0;i<4*MaxK;i++){
      if(br<1){
         res*=(maks+1);
        // cout<<i<<" "<<maks+1<<endl;
         br=0;
         maks=0;
         del=stepen[i];
      }
      br+=kol[i];
      maks+=kol[i]*stepen[i]/del;
      br/=2;
   }
   return res;
}

Compilation message (stderr)

biscuits.cpp: In function 'bool mozeli(int)':
biscuits.cpp:22:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |    for(int i=0;i<A.size();i++)
      |                ~^~~~~~~~~

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