Amazon Interview Question for SDE-2s


Country: United States




Comment hidden because of low score. Click to expand.
1
of 1 vote

import java.util.*;

public class AdjacentNumbers {
	public static void bfs(int m, int n, int num) {
		Queue<Integer> q = new LinkedList<Integer>();
		q.add(num);
		while (!q.isEmpty()) {
			int stepNum = q.poll();
			if (stepNum <= n && stepNum >= m) {
				System.out.print(stepNum + " ");
			}
			if (stepNum == 0 || stepNum > n)
				continue;
			int lastDigit = stepNum % 10;
			int stepNumA = stepNum * 10 + (lastDigit - 1);
			int stepNumB = stepNum * 10 + (lastDigit + 1);
			if (lastDigit == 0)
				q.add(stepNumB);
			else if (lastDigit == 9)
				q.add(stepNumA);
			else {
				q.add(stepNumA);
				q.add(stepNumB);
			}
		}
	}

	public static void main(String args[]) {
		int n = 0, m = 21;
		for (int i = 0; i <= 9; i++)
			bfs(n, m, i);
	}
}

- ayushmittal1903 July 02, 2019 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public ArrayList<Integer> adjacents (int n, int m){
    	ArrayList<Integer> results = new ArrayList<>();
    	for(int i = 0; i<m; i++){
    		if(i<=9){
    			results.add(i);
    		} else {
    			int firstDigit = i / 10;
    			results.add(i+(firstDigit-1));
    			results.add(i+firstDigit+1);
    			i+=9;
    		}
    	}
    	return results;
    }

- Eleanor Richie July 07, 2019 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public ArrayList<Integer> adjacents (int n, int m){
    	ArrayList<Integer> results = new ArrayList<>();
    	for(int i = 0; i<m; i++){
    		if(i<=9){
    			results.add(i);
    		} else {
    			int firstDigit = i / 10;
    			results.add(i+(firstDigit-1));
    			results.add(i+firstDigit+1);
    			i+=9;
    		}
    	}
    	return results;

}

- Eleanor Richie July 07, 2019 | Flag Reply


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