24 lines
389 B
Java
24 lines
389 B
Java
/*
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* @lc app=leetcode id=69 lang=java
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*
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* [69] Sqrt(x)
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*/
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// @lc code=start
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class Solution {
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public int mySqrt(int x) {
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long l = 0, r = x+(long)1, m;
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while(r - l > 1) {
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m = l + (r-l)/2;
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if(m*m <= x) {
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l = m;
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} else {
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r = m;
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}
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}
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return (int)l;
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}
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}
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// @lc code=end
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