📜  骗局编号

📅  最后修改于: 2021-04-26 04:53:50             🧑  作者: Mango

给定数字“ n”,请检查它是否是一个骗局数字。
骗局编号定义为一个合成数字,其位数之和等于其不同素数的位数之和。这里可能要注意的是,1不被视为素数,因此它不包含在不同素因数的总和中。

例子 :

Input : 22
Output : A Hoax Number
Explanation : The distinct prime factors of 22 
are 2 and 11. The sum of their digits are 4, 
i.e 2 + 1 + 1 and sum of digits of 22 is also 4.

Input : 84
Output : A Hoax Number
Explanation : The distinct prime factors of 84 
are 2, 3 and 7. The sum of their digits are 12, 
i.e 2 + 3 + 4 and sum of digits of 84 is also 12.

Input : 19
Output : Not a Hoax Number
Explanation : By definition, a hoax number is 
a composite number.

骗局编号的定义与史密斯编号的定义非常相似。实际上,有些骗局编号也是史密斯编号。显然,那些在素数分解中没有重复因子的骗局数字,即平方自由数也是合格的史密斯数。

执行
1)首先生成数字’n’的所有不同素数。
2)如果“ n”不是质数,请找到在步骤1中获得的因子的数字总和。
3)找到“ n”的数字总和。
4)检查在步骤2和3中获得的总和是否相等。
5)如果总和相等,则“ n”是一个骗局数字。

C++
// CPP code to check if a number is a hoax
// number or not.
#include 
using namespace std;
// Function to find distinct prime factors
// of given number n
vector primeFactors(int n)
{
    vector res;
    if (n % 2 == 0) {
        while (n % 2 == 0)
            n = n / 2;
        res.push_back(2);
    }
  
    // n is odd at this point, since it is no
    // longer divisible by 2. So we can test
    // only for the odd numbers, whether they
    // are factors of n
    for (int i = 3; i <= sqrt(n); i = i + 2) {
  
        // Check if i is prime factor
        if (n % i == 0) {
            while (n % i == 0)
                n = n / i;
            res.push_back(i);
        }
    }
  
    // This condition is to handle the case
    // when n is a prime number greater than 2
    if (n > 2)
        res.push_back(n);
    return res;
}
  
// Function to calculate sum of digits of
// distinct prime factors of given number n
// and sum of digits of number n and compare
// the sums obtained
bool isHoax(int n)
{ 
    // Distinct prime factors of n are being
    // stored in vector pf
    vector pf = primeFactors(n);
      
    // If n is a prime number, it cannot be a
    // hoax number
    if (pf[0] == n)
        return false;
      
    // Finding sum of digits of distinct prime
    // factors of the number n
    int all_pf_sum = 0;    
    for (int i = 0; i < pf.size(); i++) {
  
        // Finding sum of digits in current
        // prime factor pf[i]. 
        int pf_sum;
        for (pf_sum = 0; pf[i] > 0; 
             pf_sum += pf[i] % 10, pf[i] /= 10)
            ;
  
        all_pf_sum += pf_sum;
    }
  
    // Finding sum of digits of number n
    int sum_n;
    for (sum_n = 0; n > 0; sum_n += n % 10,
                                  n /= 10)
        ;
  
    // Comparing the two calculated sums
    return sum_n == all_pf_sum;
}
  
// Driver Method
int main()
{
    int n = 84;
    if (isHoax(n))
        cout << "A Hoax Number\n";
    else
        cout << "Not a Hoax Number\n";
    return 0;
}


Java
// Java code to check if a number is 
// a hoax number or not.
import java.io.*;
import java.util.*;
  
public class GFG {
      
    // Function to find distinct 
    // prime factors of given 
    // number n
    static List primeFactors(int n)
    {
        List res = new ArrayList();
        if (n % 2 == 0) 
        {
            while (n % 2 == 0)
                n = n / 2;
            res.add(2);
        }
      
        // n is odd at this point, 
        // since it is no longer 
        // divisible by 2. So we 
        // can test only for the 
        // odd numbers, whether they
        // are factors of n
        for (int i = 3; i <= Math.sqrt(n);
                                i = i + 2) 
        {
      
            // Check if i is prime factor
            if (n % i == 0) 
            {
                while (n % i == 0)
                    n = n / i;
                res.add(i);
            }
        }
      
        // This condition is to 
        // handle the case when 
        // n is a prime number 
        // greater than 2
        if (n > 2)
            res.add(n);
        return res;
    }
      
    // Function to calculate 
    // sum of digits of distinct 
    // prime factors of given 
    // number n and sum of 
    // digits of number n and 
    // compare the sums obtained
    static boolean isHoax(int n)
    { 
          
        // Distinct prime factors 
        // of n are being
        // stored in vector pf
        List pf = primeFactors(n);
          
        // If n is a prime number, 
        // it cannot be a hoax number
        if (pf.get(0) == n)
            return false;
          
        // Finding sum of digits of distinct
        // prime factors of the number n
        int all_pf_sum = 0; 
        for (int i = 0; i < pf.size(); i++)
        {
      
            // Finding sum of digits in current
            // prime factor pf[i]. 
            int pf_sum;
            for (pf_sum = 0; pf.get(i) > 0; 
                pf_sum += pf.get(i) % 10, 
                   pf.set(i,pf.get(i) / 10));
      
            all_pf_sum += pf_sum;
        }
      
        // Finding sum of digits of number n
        int sum_n;
        for (sum_n = 0; n > 0; sum_n += n % 10,
                                    n /= 10)
            ;
      
        // Comparing the two calculated sums
        return sum_n == all_pf_sum;
    }
      
    // Driver Code
    public static void main(String args[])
    {
        int n = 84;
        if (isHoax(n))
            System.out.print( "A Hoax Number\n");
        else
            System.out.print("Not a Hoax Number\n");
    }
}
  
// This code is contributed by
// Manish Shaw (manishshaw1)


Python3
# Python3 code to check if a number is a hoax
# number or not.
import math
  
# Function to find distinct prime factors
# of given number n
def primeFactors(n) :
    res = []
    if (n % 2 == 0) :
        while (n % 2 == 0) :
            n = int(n / 2)
        res.append(2)
  
    # n is odd at this point, since it is no
    # longer divisible by 2. So we can test
    # only for the odd numbers, whether they
    # are factors of n
    for i in range(3,int(math.sqrt(n)),2):
        # Check if i is prime factor
        if (n % i == 0) : 
            while (n % i == 0) :
                n = int(n / i)
            res.append(i)
  
    # This condition is to handle the case
    # when n is a prime number greater than 2
    if (n > 2) :
        res.append(n)
    return res
  
# Function to calculate sum of digits of
# distinct prime factors of given number n
# and sum of digits of number n and compare
# the sums obtained
def isHoax(n) :
    # Distinct prime factors of n are being
    # stored in vector pf
    pf = primeFactors(n)
      
    # If n is a prime number, it cannot be a
    # hoax number
    if (pf[0] == n) :
        return False
      
    # Finding sum of digits of distinct prime
    # factors of the number n
    all_pf_sum = 0
    for i in range(0,len(pf)):
  
        # Finding sum of digits in current
        # prime factor pf[i]. 
        pf_sum = 0
        while (pf[i] > 0):
            pf_sum += pf[i] % 10
            pf[i] = int(pf[i] / 10)
  
        all_pf_sum += pf_sum
      
  
    # Finding sum of digits of number n
    sum_n = 0;
    while (n > 0):
        sum_n += n % 10
        n = int(n / 10)
  
    # Comparing the two calculated sums
    return sum_n == all_pf_sum
  
  
# Driver Method
n = 84;
if (isHoax(n)):
    print ("A Hoax Number\n")
else:
    print ("Not a Hoax Number\n")
      
# This code is contributed by Manish Shaw
# (manishshaw1)


C#
// C# code to check if a number is 
// a hoax number or not.
using System;
using System.Collections.Generic;
  
class GFG {
      
    // Function to find distinct 
    // prime factors of given 
    // number n
    static List primeFactors(int n)
    {
        List res = new List();
        if (n % 2 == 0) 
        {
            while (n % 2 == 0)
                n = n / 2;
            res.Add(2);
        }
      
        // n is odd at this point, 
        // since it is no longer 
        // divisible by 2. So we 
        // can test only for the 
        // odd numbers, whether they
        // are factors of n
        for (int i = 3; i <= Math.Sqrt(n);
                                i = i + 2) 
        {
      
            // Check if i is prime factor
            if (n % i == 0) 
            {
                while (n % i == 0)
                    n = n / i;
                res.Add(i);
            }
        }
      
        // This condition is to 
        // handle the case when 
        // n is a prime number 
        // greater than 2
        if (n > 2)
            res.Add(n);
        return res;
    }
      
    // Function to calculate 
    // sum of digits of distinct 
    // prime factors of given 
    // number n and sum of 
    // digits of number n and 
    // compare the sums obtained
    static bool isHoax(int n)
    { 
          
        // Distinct prime factors 
        // of n are being
        // stored in vector pf
        List pf = primeFactors(n);
          
        // If n is a prime number, 
        // it cannot be a hoax number
        if (pf[0] == n)
            return false;
          
        // Finding sum of digits of distinct
        // prime factors of the number n
        int all_pf_sum = 0; 
        for (int i = 0; i < pf.Count; i++)
        {
      
            // Finding sum of digits in current
            // prime factor pf[i]. 
            int pf_sum;
            for (pf_sum = 0; pf[i] > 0; 
                pf_sum += pf[i] % 10, pf[i] /= 10);
      
            all_pf_sum += pf_sum;
        }
      
        // Finding sum of digits of number n
        int sum_n;
        for (sum_n = 0; n > 0; sum_n += n % 10,
                                     n /= 10)
            ;
      
        // Comparing the two calculated sums
        return sum_n == all_pf_sum;
    }
      
    // Driver Code
    public static void Main()
    {
        int n = 84;
        if (isHoax(n))
            Console.Write( "A Hoax Number\n");
        else
            Console.Write("Not a Hoax Number\n");
    }
}
  
// This code is contributed by
// Manish Shaw (manishshaw1)


PHP
 2)
        array_push($res, $n);
    return $res;
}
  
// Function to calculate sum 
// of digits of distinct prime 
// factors of given number n 
// and sum of digits of number 
// n and compare the sums obtained
function isHoax($n)
{ 
    // Distinct prime factors 
    // of n are being stored
    // in vector pf
    $pf = primeFactors($n);
      
    // If n is a prime number, 
    // it cannot be a hoax number
    if ($pf[0] == $n)
        return false;
      
    // Finding sum of digits of distinct
    // prime factors of the number n
    $all_pf_sum = 0; 
    for ($i = 0; $i < count($pf); $i++)
    {
  
        // Finding sum of digits in
        // current prime factor pf[i]. 
        $pf_sum;
        for ($pf_sum = 0; $pf[$i] > 0; 
              $pf_sum += $pf[$i] % 10, 
                       $pf[$i] /= 10)
            ;
  
        $all_pf_sum += $pf_sum;
    }
  
    // Finding sum of digits of number n
    for ($sum_n = 0; $n > 0; 
          $sum_n += $n % 10, $n /= 10)
        ;
  
    // Comparing the two calculated sums
    return $sum_n == $all_pf_sum;
}
  
// Driver Code
$n = 84;
if (isHoax($n))
    echo ("A Hoax Number\n");
else
    echo ("Not a Hoax Number\n");
      
// This code is contributed by 
// Manish Shaw(manishshaw1)
?>


输出 :

A Hoax Number