Submission #987471

#	Time	Username	Problem	Language	Result	Execution time	Memory
987471		activedeltorre	Semafor (COI20_semafor)	C++14	12 / 100	107 ms	496 KiB

semafor

#include <iostream>

using namespace std;
long long nr1[2300];
long long nr2[2300];
long long cif(long long val)
{
    if(val==1)
    {
        return 1;
    }
    else if(val==2)
    {
        return 6;
    }
    else if(val==3)
    {
        return 21;
    }
    else if(val==4)
    {
        return 9;
    }
    else if(val==5)
    {
        return 28;
    }
    else if(val==6)
    {
        return 18;
    }
    else if(val==7)
    {
        return 5;
    }
    else if(val==8)
    {
        return 30;
    }
    else if(val==9)
    {
        return 29;
    }
    else
        return 3;
}
long long getid(long long val)
{
    return cif(val/10)*32+cif(val%10);
}
long long mod=1e9+7;
long long nmax=1023;
int main()
{
    long long n,i,j,k,l,m,st,val,z;
    cin>>m>>n>>k>>st;
    val=getid(st);
    nr1[val]=1;
    for(i=1;i<=n;i++)
    {
        for(j=0;j<=nmax;j++)
        {
            for(z=0;z<=9;z++)
            {
                val=1<<z;
                nr2[j^val]+=nr1[j];
            }
        }
        for(j=0;j<=nmax;j++)
        {
            nr1[j]=nr2[j]%mod;
        }
        /*
        if(i%k==0)
        {
            for(j=0;j<=9;j++)
            {
                nr1[getid(j)]*=2;
            }
            for(j=0;j<=nmax;j++)
            {
                nr1[j]-=nr2[j];
            }
        }*/
        for(j=0;j<=nmax;j++)
        {
            nr2[j]=0;
        }
    }
    for(i=0;i<=99;i++)
    {
        cout<<nr1[getid(i)]%mod<<'\n';
    }
    return 0;
}

Compilation message (stderr)

semafor.cpp: In function 'int main()':
semafor.cpp:55:23: warning: unused variable 'l' [-Wunused-variable]
   55 |     long long n,i,j,k,l,m,st,val,z;
      |                       ^

• Subtask 1: 0 / 6
• Subtask 2: 0 / 15
• Subtask 3: 12 / 12
• Subtask 4: 0 / 12
• Subtask 5: 0 / 15
• Subtask 6: 0 / 40