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26 changes: 25 additions & 1 deletion level-2/구명보트.js
Original file line number Diff line number Diff line change
Expand Up @@ -16,4 +16,28 @@ function solution(people, limit) {
cnt++;
}
return cnt;
} // 4주차 2번 문제와 유사함
} // 4주차 2번 문제와 유사함

// 정답 2- prove-ability
function solution(people, limit) {
let count = 0;
// 오름차순 정렬
people.sort((a, b) => a - b);

// people 배열 요소가 있다면?
while(people.length) {

// 요소 중 가장 큰 수인 마지막 요소를 가져온다
let sum = people.pop();

// 요소 중 가장 작은 수를 더한다
sum += people[0]

// 합이 무게제한보다 작거나 같다면 가장 작은 요소 제거
if(sum <= limit) people.shift();

count++;
}

return count;
}
17 changes: 17 additions & 0 deletions level-2/숫자의-표현.js
Original file line number Diff line number Diff line change
Expand Up @@ -14,4 +14,21 @@ function solution(n) { //수학적 풀이는 별도로 하지 않았습니다.
}
}
return answer;
}

//정답 2 - prove-ability
function solution(n) {
let answer = 0;
for(let i = 1; i <= n; i++) {
let sum = 0;
for(let j = i; j <= n; j++) {
sum += j;
if(sum > n) break;
if(n === sum) {
answer++;
break;
}
}
}
return answer;
}
6 changes: 6 additions & 0 deletions level-2/최댓값과-최솟값.js
Original file line number Diff line number Diff line change
Expand Up @@ -23,4 +23,10 @@ function solution(s) {
let small = s[0] // s의 최솟값
let large = s[s.length - 1] // s의 최댓값
return (small + ' ' + large)
}

//정답 4 - prove-ability
function solution(s) {
s = s.split(" ").map((v) => parseInt(v, 10))
return `${Math.min(...s)} ${Math.max(...s)}`;
}