#369
The Quiz Aggregator
| Difficulty: | Easy |
| Topics: | Real life cases List of Maps |
Mission: "Quiz Aggregator" menantang lo untuk membuat sistem agregasi soal pilihan ganda dari berbagai topik. Diberikan list of maps yang berisi :topic, :difficulty, dan :questions (sebuah list of strings yang mewakili soal). Elo diminta untuk menyusun ulang data menjadi map baru dengan :topic sebagai kunci utama dan nilai berupa map lain yang memetakan :difficulty ke list of :questions. Urutkan :questions dalam setiap :difficulty berdasarkan abjad.
 | (= (__ [{:topic "Math" :difficulty "Easy" :questions ["1+1=?", "2+2=?"]}
{:topic "Math" :difficulty "Hard" :questions ["Integrate x^2"]}
{:topic "Science" :difficulty "Easy" :questions ["Water H2O is"]})
{"Math" {"Easy" ["1+1=?", "2+2=?"], "Hard" ["Integrate x^2"]}, "Science" {"Easy" ["Water H2O is"]}}) |
| (= (__ [{:topic "History" :difficulty "Medium" :questions ["Who discovered America?"]}
{:topic "History" :difficulty "Easy" :questions ["Capital of France?"]}
{:topic "Geography" :difficulty "Easy" :questions ["Mount Everest is located in?"]}])
{"History" {"Medium" ["Who discovered America?"], "Easy" ["Capital of France?"]}, "Geography" {"Easy" ["Mount Everest is located in?"]}}) |
| (= (__ []) {}) |
| (= (__ [{:topic "Programming" :difficulty "Medium" :questions ["What is polymorphism?", "Explain closures"]}
{:topic "Programming" :difficulty "Easy" :questions ["What does 'var' stand for?"]}])
{"Programming" {"Medium" ["Explain closures", "What is polymorphism?"], "Easy" ["What does 'var' stand for?"]}})
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