[RiaOh] WEEK 01 solutions #1172
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jinhyungrhee
approved these changes
Apr 6, 2025
| var containsDuplicate = function (nums) { | ||
| let count = [nums[0]]; | ||
| for (let i = 1; i < nums.length; i++) { | ||
| if (count.includes(nums[i])) { |
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includes()는 내부적으로 for문처럼 동작하는 것일까요?
조금 더 개선된 성능을 원하신다면 Set자료구조를 사용해보시는 것도 방법이 될 수 있을 것 같습니다!
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오! 네 감사합니다. set자료구조로 풀어보겠습니다 :)
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| const arr = new Array(nums.length + 1); | ||
| arr[0] = 0; | ||
| arr[1] = nums[0]; | ||
| for (let i = 2; i < arr.length; i++) { | ||
| arr[i] = Math.max(arr[i - 1], arr[i - 2] + nums[i - 1]); | ||
| } | ||
| return arr[arr.length - 1]; |
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dp를 활용하면 코드가 훨씬 간단해지고 깔끔해지는 것 같네요!
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