
fruits 순회function numOfUnplacedFruits(fruits: number[], baskets: number[]): number {
let remainFruits = fruits.length
const usedBasket = new Set()
for(const fruit of fruits) {
for(let i = 0; i < baskets.length; i++) {
if(usedBasket.has(i)) continue
if(baskets[i] < fruit) continue
remainFruits--
usedBasket.add(i)
break
}
}
return remainFruits
};