Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive intege ...
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移动开发 时间：
2018-11-14 20:58:18
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165
今天学习用来判断faster rcnn中对于评估多个类别检测的效果，部分内容参考http://blog.sina.com.cn/s/blog_9db078090102whzw.html。 mAP(mean average precision)多类平均精度，首先计算出每个类的AP，然后取所有类的AP的 ...
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其他好文 时间：
2018-11-14 20:51:56
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136
Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3×5×6×7, where 5, 6, a ...
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2018-11-13 18:04:10
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155
题目链接：https://codeforc.es/problemset/problem/483/B You have two friends. You want to present each of them several positive integers. You want to presen ...
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2018-11-13 14:25:03
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161
Basically, the support vector machine is a binary learning machine with some highly elegant properties. Given a training sample, the support vector ma ...
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其他好文 时间：
2018-11-11 10:53:29
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207
A positive integer is magical if it is divisible by either A or B. Return the N-th magical number. Since the answer may be very large, return it modul ...
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其他好文 时间：
2018-11-10 20:14:42
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157
Given an array w of positive integers, where w[i] describes the weight of index i, write a function pickIndex which randomly picks an index in proport... ...
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2018-11-08 18:17:49
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213
判断字符串是否为正整数，0开始的的数字不算。 SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE FUNCTION [dbo].[svf_IsPositiveInteger] ( @string NVARCHAR(MAX) ) RETURN ...
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数据库 时间：
2018-11-07 11:44:16
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164
Given an m x n matrix of positive integers representing the height of each unit cell in a 2D elevation map, compute the volume of water it is able to ... ...
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移动开发 时间：
2018-11-06 11:19:03
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208
Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors are in the given prime list primes ... ...
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其他好文 时间：
2018-11-06 11:15:31
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164
