Link코딩테스트 연습 - 실패율 문제풀이(1)function solution(N, stages) { let arr = new Array(N + 2).fill(0) for (let s of stages) { arr[s] += 1; } let total = stages.length; let pre = 0; let fail = [] for (let i = 1; i b[1] - a[1] || a[0] - b[0]) return fail.map(f => f[0]);}