問題 https://leetcode-cn.com/problems/excel-sheet-column-title/
練習使用JavaScript解答
/**
* @param {number[]} nums
* @return {number}
*/
var majorityElement = function(nums) {
var a = nums[0], n=1;
for(var i=1;i<nums.length;++i) {
if(nums[i] != a) {
if(--n <= 0) {
a = nums[i];
n = 1;
}
} else {
++n;
}
}
return a;
};