https://www.acwing.com/problem/content/4250/
http://poj.org/problem?id=3159
思路假设第i个同学得到的糖果数量为 a [ i ] a[i] a[i],然后第j个同学得到的糖果数位 a [ j ] a[j] a[j]现在要求第j个同学的糖果数不超过 a [ i ] + k a[i] + k a[i]+k个,也就是 a [ j ] − a [ i ] < = k a[j] - a[i]
https://www.acwing.com/problem/content/4250/
http://poj.org/problem?id=3159
思路假设第i个同学得到的糖果数量为 a [ i ] a[i] a[i],然后第j个同学得到的糖果数位 a [ j ] a[j] a[j]现在要求第j个同学的糖果数不超过 a [ i ] + k a[i] + k a[i]+k个,也就是 a [ j ] − a [ i ] < = k a[j] - a[i]
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