Enter a positive integer n, return a minimum positive integer m (m at least 2 digits), so that M's product equals n, such as input 36, output 49, input 100, output 455, for some n does not exist such m, please return-1.
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Input a positive integer N and return a minimum positive integer m (M is at least two digits), so that the product of M is equal to N, for example, input 36, output 49, input 100, output 455, if a certain N does not have such M, return-1. Package

Interview question: Given a sequential file containing 4.3 billion 32-bit integers, find an integer that contains at least two times.
Idea: Consider two conditions
1. All integers are stored in the sequential file, so the number of times the

The topic is like this: Click to open the linkThe main idea is to find all positive integer pairs so that they greatest common divisor to n and least common multiple to M. (1 The problem can be converted to: set A, B is that integer pair, N, a, B.,

Just a few days after I came to Shanghai, I was looking for a job. When I was looking for a job, I met a company's interview question:
You must use at least three methods to determine whether an integer is an even number.
The time was too short.

Problem DescriptionThe Least common multiple (LCM) of a set of positive integers are the smallest positive integer which is Divisible by all the numbers in the set. For example, the LCM of 5, 7 and 105.Inputinput would consist of multiple problem

Least common multiple
Time Limit: 2000/1000 MS (Java/others) memory limit: 65536/32768 K (Java/Others)Total submission (s): 30285 accepted submission (s): 11455Problem descriptionthe least common multiple (LCM) of a set of positive integers is the

Test instructions: least common multiple of n numberAnalysis: Using method: LCM (A,b,c) =LCM (A,LCM (b,c)). Note that the first addition to the multiplier prevents integer overflow (tips)Code:#include using namespace Std;int t,n,a;int gcd (int a,int

Minimum Public multipleThe public multiples of several numbers are called the Public multiples of these numbers, and the smallest one is called the minimum public multiples of these numbers.Minimum Public multiple:Square brackets are commonly used

HDU 1019 Least Common Multiple-number theory (Least Common)
Evaluate the minimum public multiple of n numbers
Analysis: Use method: lcm (a, B, c) = lcm (a, lcm (B, c )). Note that division first and multiplication prevent Integer Overflow (TIPS)

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