Kostya likes the number 4 much. Of course! This number has such a lot of properties, like:
- Four is the smallest composite number;
- It is also the smallest Smith number;
- The smallest non-cyclic group has four elements;
- Four is the maximal degree of the equation that can be solved in radicals;
- There is four-color theorem that states that any map can be colored in no more than four colors
in such a way that no two adjacent regions are colored in the same color; - Lagrange’s four-square theorem states that every positive integer can be written as the sum of at most four square numbers;
- Four is the maximum number of dimensions of a real division algebra;
- In bases 6 and 12, 4 is a 1-automorphic number;
- And there are a lot more cool stuff about this number!
Impressed by the power of this number, Kostya has begun to look for occurrences of four anywhere. He has a list of T integers, for each of them he wants to calculate the number of occurrences of the digit 4 in the decimal representation. He is too busy now, so please help him.
Input
The first line of input consists of a single integer T, denoting the number of integers in Kostya’s list.
Then, there are T lines, each of them contain a single integer from the list.
Output
Output T lines. Each of these lines should contain the number of occurrences of the digit 4 in the respective integer from Kostya’s list.
Input:
Enter the TestCase: 1
Enter any number: 4548464943142445
Output:
Count = 8
import java.io.*; import java.util.*; public class temp{ public static void main(String[] args) throws IOException { Scanner sc=new Scanner(System.in); System.out.print("Enter the TestCases: "); int t=sc.nextInt(); for(int i=0;i<t;i++) { System.out.print("Enter any number: "); long n=sc.nextLong(); long count=0,rem=0; while(n!=0) { rem=n%10; n=n/10; if(rem==4) { count++; } } System.out.println("Count = "+count); } } }
INPUT_1:
Enter the TestCases: 2
Enter any number: 485485644745
Count = 5
Enter any number: 424244
Count = 4
INPUT_2:
Enter the TestCases: 1
Enter any number: 4548464943142445
Count = 8
INPUT_3:
Enter the TestCases: 2
Enter any number: 4444451404
Count = 7
Enter any number: 1014210152
Count = 1
INPUT_4:
Enter the TestCases: 3
Enter any number: 4584945
Count = 3
Enter any number: 2152365
Count = 0
Enter any number: 48521
Count = 1
INPUT_5:
Enter the TestCases: 4
Enter any number: 141414
Count = 3
Enter any number: 111114
Count = 1
Enter any number: 152461185459443
Count = 4
Enter any number: 456894
Count = 2
INPUT_6:
Enter the TestCases: 5
Enter any number: 246810
Count = 1
Enter any number: 3691215
Count = 0
Enter any number: 4812162024
Count = 2
Enter any number: 51015253035
Count = 0
Enter any number: 1011101111014
Count = 1
ILLUSTRATION
