Commit 1433ad9

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Add 약수의-개수와-덧셈.js

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Lines changed: 19 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -43,4 +43,22 @@ function solution(left, right) {`
`43`	`43`	`}`
`44`	`44`	`return answer;`
`45`	`45`	`}`
`46`		`- //`
	`46`	`+`
	`47`	`+// 정답 4 - prove-bility`
	`48`	`+function getDivisorCount(i) {`
	`49`	`+ let count = 0;`
	`50`	`+ for(let j = 1; j <= i; j++) {`
	`51`	`+ if(i % j === 0) count++;`
	`52`	`+ }`
	`53`	`+ return count;`
	`54`	`+}`
	`55`	`+`
	`56`	`+function solution(left, right) {`
	`57`	`+ let answer = 0;`
	`58`	`+ for(let i = left; i <= right; i++) {`
	`59`	`+ let count = getDivisorCount(i);`
	`60`	`+ if(count % 2 === 0) answer += i;`
	`61`	`+ else answer -= i;`
	`62`	`+ }`
	`63`	`+ return answer;`
	`64`	`+}`

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