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prove-ability prove-ability

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Add 예산.js

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`‎level-1/예산.js`

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Original file line number	Diff line number	Diff line change
`@@ -10,4 +10,21 @@ function solution(d, budget) {`
`10`	`10`	`budget -= department`
`11`	`11`	`}`
`12`	`12`	`return answer;`
	`13`	`+}`
	`14`	`+`
	`15`	`+// prove-ability`
	`16`	`+function solution(d, budget) {`
	`17`	`+ let sum = 0;`
	`18`	`+ let count = 0;`
	`19`	`+ // 오름차순 정렬`
	`20`	`+ d.sort((a, b) => a - b);`
	`21`	`+ for(let i = 0, len = d.length; i < len; i++) {`
	`22`	`+ // 작은 수 부터 하나씩 더해준다`
	`23`	`+ sum += d[i];`
	`24`	`+ // 더한 수가 정해진 예산과 같다면 이전까지 센 카운트 반환`
	`25`	`+ if(sum > budget) return count;`
	`26`	`+ count++;`
	`27`	`+ }`
	`28`	`+`
	`29`	`+ return count;`
`13`	`30`	`}`

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