# C++ Program to Check if a number is Lychrel number or not

The Program in C++ Program to Check if a number is Lychrel number or not is given below:

``````#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

bool isPalindrome(int num) {
string str = to_string(num);
string reverseStr = str;
reverse(reverseStr.begin(), reverseStr.end());
return str == reverseStr;
}

bool isLychrel(int num) {
int iteration = 0;
while (iteration < 50) {
int reverseNum = 0;
int tempNum = num;

// Reverse the number
while (tempNum > 0) {
reverseNum = reverseNum * 10 + tempNum % 10;
tempNum /= 10;
}

// Add the number to its reverse
num += reverseNum;

// Check if the result is a palindrome
if (isPalindrome(num)) return false;

iteration++;
}

return true;
}

int main() {
int num;

cout << "Hello Codeauri Family,enter a number here to check if it is Lychrel number or not!:\n ";
cin >> num;

if (isLychrel(num))
cout << num << " is a Lychrel number" << endl;
else
cout << num << " is not a Lychrel number" << endl;

return 0;
}
``````

## Output:

Hello Codeauri Family,enter a number here to check if it is Lychrel number or not!:
196
196 is a Lychrel number

## Pro-Tips💡

This program uses two functions: `isPalindrome` and `isLychrel`.

The function `isPalindrome` takes an integer as input and returns a boolean indicating whether the number is a palindrome or not.

The function `isLychrel` takes an integer as input and returns a boolean indicating whether the number is a Lychrel number or not.

The function `isLychrel` first reverses the number, adds it to the original number, and then checks if the result is a palindrome.

If it is not a palindrome, the process is repeated for up to 50 iterations.

If the result is still not a palindrome after 50 iterations, the number is considered to be a Lychrel number

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