Auto.md

// Given a number N, the task is to check whether the number is Automorphic number or not. // A number is called Automorphic number if and only if its square ends in the same digits as the number itself.

// Input : N = 25 // Output : Automorphic // As 25*25 = 625

// Input : N = 7 // Output : Not Automorphic // As 7*7 = 49

// Input : N = 6 // Output : Automorphic // Since 6*6 = 36

SOLUTION: class Test { // Function to check Automorphic number static boolean isAutomorphic(int N) { // Store the square int sq = N * N;

    // Start Comparing digits 
    while (N > 0) { 
        // Return false, if any digit of N doesn't 
        // match with its square's digits from last 
        if (N % 10 != sq % 10) 
            return false; 

        // Reduce N and square 
        N /= 10; 
        sq /= 10; 
    } 

    return true; 
} 

// Driver method 
public static void main(String[] args) 
{ 
    int N = 25; 

    System.out.println(isAutomorphic(N) ? "Automorphic" : "Not Automorphic"); 
} 

}