Write a method List duplicates(List-Doubles input) that returns a List af all duplicates in the input List. You may assume thai each elemert occurs either once or twicc. The expected runtime nust be Oo) whece n is the number a elements (even if the input is a Linkodl ist, the runtime should still he n) ino credit for slower runtimes, so you cancsot sort the input). (12 point) Examples: input 13, 4,4 retum [4 input 13.7, 4, 7,3] rctum 17, 3] ListくDouble) duplicates(し1st
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