From a6a578f585edad26c9f114c31c210c2327888c46 Mon Sep 17 00:00:00 2001
From: sruti2024 <srutichatterjee2024@gmail.com>
Date: Wed, 15 Jan 2020 11:34:13 +0530
Subject: [PATCH] adding c++ program to generate kaprekar number

---
 kaprekar_number.cpp | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 kaprekar_number.cpp

diff --git a/kaprekar_number.cpp b/kaprekar_number.cpp
new file mode 100644
index 0000000..eddffc8
--- /dev/null
+++ b/kaprekar_number.cpp
@@ -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;
+  }
+
+