Submission #169911


Source Code Expand

Copy
n = gets.to_i
c = Array.new(n,0)
count = Array.new(n,-1)
n.times do |i|
    c[i] = gets.to_i
end
c.sort!
sum = 0
v = (1..n).inject(:*)
for i in 0...n
    for j in 0...n
        if c[i]%c[j]==0
            count[i] += 1
        end
    end
end
for i in 0...n
    sum += count[i]%2==1 ? v/2 : v*(count[i]+2)/(2*count[i]+2)
end
p sum.to_f/v.to_f

Submission Info

Submission Time
Task C - コイン
User takuk
Language Ruby (1.9.3)
Score 100
Code Size 361 Byte
Status AC
Exec Time 62 ms
Memory 4340 KB

Judge Result

Set Name Sample Subtask1 Subtask2
Score / Max Score 0 / 0 99 / 99 1 / 1
Status
AC × 3
AC × 20
AC × 40
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
Subtask1 subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt
Subtask2 subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt, subtask2_14.txt, subtask2_15.txt, subtask2_16.txt, subtask2_17.txt, subtask2_18.txt, subtask2_19.txt, subtask2_20.txt
Case Name Status Exec Time Memory
sample_01.txt AC 56 ms 4212 KB
sample_02.txt AC 58 ms 4212 KB
sample_03.txt AC 56 ms 4208 KB
subtask1_01.txt AC 58 ms 4208 KB
subtask1_02.txt AC 59 ms 4208 KB
subtask1_03.txt AC 55 ms 4124 KB
subtask1_04.txt AC 55 ms 4212 KB
subtask1_05.txt AC 54 ms 4208 KB
subtask1_06.txt AC 54 ms 4212 KB
subtask1_07.txt AC 55 ms 4208 KB
subtask1_08.txt AC 54 ms 4208 KB
subtask1_09.txt AC 55 ms 4212 KB
subtask1_10.txt AC 56 ms 4196 KB
subtask1_11.txt AC 55 ms 4212 KB
subtask1_12.txt AC 54 ms 4208 KB
subtask1_13.txt AC 56 ms 4196 KB
subtask1_14.txt AC 54 ms 4204 KB
subtask1_15.txt AC 54 ms 4208 KB
subtask1_16.txt AC 54 ms 4212 KB
subtask1_17.txt AC 55 ms 4208 KB
subtask1_18.txt AC 57 ms 4204 KB
subtask1_19.txt AC 56 ms 4208 KB
subtask1_20.txt AC 55 ms 4208 KB
subtask2_01.txt AC 56 ms 4208 KB
subtask2_02.txt AC 56 ms 4244 KB
subtask2_03.txt AC 57 ms 4204 KB
subtask2_04.txt AC 59 ms 4196 KB
subtask2_05.txt AC 55 ms 4208 KB
subtask2_06.txt AC 56 ms 4256 KB
subtask2_07.txt AC 60 ms 4208 KB
subtask2_08.txt AC 58 ms 4212 KB
subtask2_09.txt AC 62 ms 4204 KB
subtask2_10.txt AC 60 ms 4340 KB
subtask2_11.txt AC 61 ms 4208 KB
subtask2_12.txt AC 60 ms 4208 KB
subtask2_13.txt AC 56 ms 4212 KB
subtask2_14.txt AC 57 ms 4204 KB
subtask2_15.txt AC 58 ms 4208 KB
subtask2_16.txt AC 58 ms 4208 KB
subtask2_17.txt AC 58 ms 4208 KB
subtask2_18.txt AC 58 ms 4212 KB
subtask2_19.txt AC 56 ms 4208 KB
subtask2_20.txt AC 59 ms 4208 KB