Problem With the Question Lucky Four

help
1

Question link: LUCKFOUR Problem - CodeChef

Scanner sc = new Scanner(System.in);
int taker = sc.nextInt();
String tester = String.valueOf(taker);
int counter = 0;

for (int i = 0; i < tester.length();i++)
{
if (tester.charAt(i) == ‘4’)
{
counter++;
}
else
continue;
}
System.out.println(counter);

That’s my code, the code seems to work in eclipse but after I upload it onto CodeChef, its wrong. Anyone know whats wrong with my code?

2

Please either copy-and-paste all of your code and format it using “Preformatted Text” (</>) or link to the failing submission. Thanks :slight_smile:

Since you’ve only posted a snippet of your full code, it’s hard to know for sure, but you don’t seem to be dealing with multiple testcases.

3

Sorry about that. Here is the link to the failing submission: CodeChef: Practical coding for everyone

And would you be able to further explain that?

4

The problem gives some example input and output. Given the output:

5
447474
228
6664
40
81

the output should be:

4
0
1
1
0

What is the output from your program with the given input?