[LeetCode/릿코드] 69. Sqrt(x)

문제

 

 

반응형

---

풀이

 

 

 

class Solution {
    public int mySqrt(int x) {
        int answer = 0;
        for(long i=1; i<=x; i++) {
            if(i * i > x) {
                answer = (int) (i-1);
                break;
            }else if(i * i == x) {
                answer = (int) i;
                break;
            }
        }
        return answer;
    }
}