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adding c++ program to generate kaprekar number #37

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adding c++ program to generate kaprekar number #37

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37 changes: 37 additions & 0 deletions kaprekar_number.cpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,37 @@
#include<bits/stdc++.h>
#include<math.h>
using namespace std;
int sum(int n)
{
int m=n,d=0;
int s=m*m;
//while loop begins to count the number of digits
while(n!=0)
{
d++;
n=n/10;
}
int a=s%(int)pow(10,d);
int b=s/(int)pow(10,d);
int su=a+b;
return(su);
}
int main()
{
int k=0,num,m;
cout<<"Enter the upper and lower limits :"<<endl;
cin>>num>>m;
//displaying the reasult
cout<<"The kaprekar numbers within "<<m<<" and "<<num<<" : "<<endl;
for(int i=m;i<=num;i++)
{
if(sum(i)==i)
{
cout<<i<<"\t";
k++;
}
}
cout<<endl;
}