题解 | #袖珍计算器法#
求平方根
http://www.nowcoder.com/practice/09fbfb16140b40499951f55113f2166c
import java.util.*;
public class Solution {
/**
*
* @param x int整型
* @return int整型
*/
public int sqrt (int x) {
// write code here
if (x == 0) {
return 0;
}
int ans = (int) Math.exp(Math.log(x) * 0.5);
return (ans + 1) * (ans + 1) <= x ? ans + 1 : ans;
}
}
实际上你做了之后根本不想刷题
