[刷题]O(1) Check Power of 2
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[LintCode]O(1) Check Power of 2
class Solution { /* * @param n: An integer * @return: True or false */ public boolean checkPowerOf2(int n) { // 2015-09-06 if (n <= 0) { return false; } boolean res = ((n & (n-1)) == 0) ? true : false; return res; }}; 0 0
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