Submission #1981285

Source Code Expand

n,p=gets.split
n=n.to_i
p=p.to_i

arr=gets.split.map(&:to_i)
kisuu=arr.count{|i| i%2==1}
guusu=arr.count{ |i| i%2==0}

def tanaka(s,t)
    aa=1
    bb=s
    ans=1
    
    t.times{
        ans=ans*bb/aa
        aa+=1
        bb-=1
        
    }
    return ans
end


ans3=0
jj=0
(kisuu/2+1).times{
    ans3+=tanaka(kisuu,jj)
    jj+=2
    
}

ans4=2**(kisuu)-ans3
kk=2**(guusu)

if p==0
    puts kk*ans3  
    
else 
   puts  kk*ans4
    
end

Submission Info

Submission Time
Task A - Biscuits
User hamasugar
Language Ruby (2.3.3)
Score 200
Code Size 486 Byte
Status AC
Exec Time 7 ms
Memory 3836 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 200 / 200
Status
AC × 4
AC × 16
Set Name Test Cases
Sample sample1.txt, sample2.txt, sample3.txt, sample4.txt
All sample1.txt, sample2.txt, sample3.txt, sample4.txt, in1.txt, in2.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, sample1.txt, sample2.txt, sample3.txt, sample4.txt
Case Name Status Exec Time Memory
in1.txt AC 7 ms 1788 KB
in2.txt AC 7 ms 1788 KB
in3.txt AC 7 ms 1788 KB
in4.txt AC 7 ms 1788 KB
in5.txt AC 7 ms 1788 KB
in6.txt AC 7 ms 1788 KB
in7.txt AC 7 ms 1788 KB
in8.txt AC 7 ms 1788 KB
sample1.txt AC 7 ms 3836 KB
sample2.txt AC 7 ms 1788 KB
sample3.txt AC 7 ms 1788 KB
sample4.txt AC 7 ms 1788 KB