πŸ“œ

Repeat String

Repeat String
쉬움 λ¬Έμžμ—΄ +10pts

Problem

Write a function that repeats a string n times.

Examples

Input: repeatString("ab", 3)
Output: "ababab"

Explanation

이 λ¬Έμ œλŠ” **repeat() λ©”μ„œλ“œ**λ₯Ό μ‚¬μš©ν•˜μ—¬ λ¬Έμžμ—΄μ„ λ°˜λ³΅ν•˜λŠ” 방법을 ν•™μŠ΅ν•©λ‹ˆλ‹€. ## 핡심 κ°œλ…: λ¬Έμžμ—΄ 반볡 repeat()은 λ¬Έμžμ—΄μ„ μ§€μ •λœ 횟수만큼 λ°˜λ³΅ν•˜μ—¬ μƒˆ λ¬Έμžμ—΄μ„ λ§Œλ“­λ‹ˆλ‹€. ### κΈ°λ³Έ μ‚¬μš©λ²• ```javascript str.repeat(count) ``` - count: 반볡 횟수 (0 μ΄μƒμ˜ μ •μˆ˜) - 0이면 빈 λ¬Έμžμ—΄ λ°˜ν™˜ - μŒμˆ˜λ‚˜ Infinityλ©΄ 였λ₯˜ λ°œμƒ ### ν™œμš© μ˜ˆμ‹œ ```javascript "ab".repeat(3) // "ababab" "*".repeat(5) /...

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Key Concepts

repeat λ©”μ„œλ“œ λ¬Έμžμ—΄ 반볡 ES6 λ©”μ„œλ“œ νŒ¨ν„΄ 생성
Time: O(n*m) Space: O(n*m)
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