LeetCode K-diff Pairs in an Array
2017-03-31 19:55
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题意：给出一个数组a，及k,求数组中两个数据的绝对值为k的对数
代码如下：
代码如下：
var findPairs = function(nums, k) {
if (k < 0) return 0;
var t = {};
var len = nums.length;
for (var i = 0; i < len; i++)
{
if (!t.hasOwnProperty(nums[i]))
{
t[nums[i]] = 1;
}
else
{
t[nums[i]]++;
}
}
var cnt = 0;
for (var pro in t)
{
if (k == 0)
{
if (t[pro] >= 2) cnt++;
}
else if (t.hasOwnProperty(pro - k)) cnt++;
}
return cnt;
};
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