Submission #1281488

---

Source Code Expand

require 'pp'

n, m = gets.strip.split.map(&:to_i)
map = {}
m.times do
    a, b = gets.strip.split.map(&:to_i)
    map[a] = {} unless map.key?(a)
    map[b] = {} unless map.key?(b)
    if map[a].key?(b)
        map[a][b] += 1
    else
        map[a][b] = 1
    end
    if map[b].key?(a)
        map[b][a] += 1
    else
        map[b][a] = 1
    end
end

n.times do |i|
    puts map.key?(i + 1) map[i + 1].values.inject(:+) : 0
end

Submission Info

Compile Error

./Main.rb:22: syntax error, unexpected tIDENTIFIER, expecting keyword_end
    puts map.key?(i + 1) map[i + 1].values.inject(:+) : 0
                            ^
./Main.rb:22: syntax error, unexpected ':', expecting keyword_end
    puts map.key?(i + 1) map[i + 1].values.inject(:+) : 0
                                                       ^

Judge Result