Check whether the sum of absolute difference of adjacent digits is Prime or not

Given a number a N and the task is to check weather the sum of absolute difference of adjacent digit is a prime or not.


Input: N = 142 
Output: Prime
Sum = |1-4| + |4-2| = 5 i.e. prime.

Input: N = 347
Output: Not prime

Approach: Find the sum of absolute difference of adjacent digits and then check if that sum is prime or not.

Below is the implementation of the above approach:


// C++ implementation of the above approach

using namespace std;

// Function to check for a prime number
bool Prime(int n){

if( n == 1){
return false;
for (int i=2;i*i<=n;i++){ if (n % i == 0) return false; } return true; } // Function to find the sum of array bool checkSumPrime(string st){ int summ = 0; for (int i=1;i Output:


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Improved By : mohit kumar 29