會寫題解的一般都是自認為還蠻有意思或者蠻典型的題目,就比如這道題。 題目鏈接:Count of Small ...
題目: You are given an integer arraynumsand you have to return a newcountsarray. Thecountsarray has the property wherecounts i is the number of smaller elements to the right ofnums i . Example: Return t ...
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會寫題解的一般都是自認為還蠻有意思或者蠻典型的題目,就比如這道題。 題目鏈接:Count of Small ...
of smaller elements to the right of nums[i]. Example: ...
題目: 分析:很顯然不能用時間復雜度為O(N2)的暴力窮舉法,下面先給出一個運行時間為102ms的AC答案: 上面的答案雖然AC了,但若原始海量數據本身是降序排列時,再 ...
Given the array nums, for each nums[i] find out how many numbers in the array are smaller than it. That is, for each nums[i] you have to count ...
鏈接 給定一個整數數組 nums,按要求返回一個新數組 counts。數組 counts 有該性質: counts[i] 的值是 nums[i] 右側小於 nums[i] 的元素的數量。 ...
A self-dividing number is a number that is divisible by every digit it contains. For example, 128 is a self-dividing number because 128 ...
Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. Example: Given n = 2, return 91. (The answer ...
蘋果對編譯器在不斷優化,GCD方法中的block基本都不需要使用weakself,並不會造成循環引用。 dispatch_after官方文檔中對block部分的說明: 一:使用self 從ViewControllerA push ...