import java.util.ArrayList; import java.util.List; import java.util.Scanner; public class row { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String k = scanner.next(); String a = scanner.next(); String b = scanner.next(); System.out.print(count(new String[]{k,a,b}).size()); scanner.close(); } static List<Long> count(String args[]){ long k = Long.parseLong(args[0]); long a = Long.parseLong(args[1]); long b = Long.parseLong(args[2]); List<Long> result = new ArrayList<Long>(); for(long n = a+k-(a%k); n<=b; n+=k){ String nString = n+""; long sum = 0; for(int i=0; i<nString.length(); i++){ long val = Long.parseLong((nString.charAt(i)-48)+""); sum+=val*val; } if(n/k==sum){ result.add(n); } } return result; } }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | import java.util.ArrayList; import java.util.List; import java.util.Scanner; public class row { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String k = scanner.next(); String a = scanner.next(); String b = scanner.next(); System.out.print(count(new String[]{k,a,b}).size()); scanner.close(); } static List<Long> count(String args[]){ long k = Long.parseLong(args[0]); long a = Long.parseLong(args[1]); long b = Long.parseLong(args[2]); List<Long> result = new ArrayList<Long>(); for(long n = a+k-(a%k); n<=b; n+=k){ String nString = n+""; long sum = 0; for(int i=0; i<nString.length(); i++){ long val = Long.parseLong((nString.charAt(i)-48)+""); sum+=val*val; } if(n/k==sum){ result.add(n); } } return result; } } |