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The_Love_Letter_Mystery.java
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The_Love_Letter_Mystery.java
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import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
public class Solution {
// Complete the theLoveLetterMystery function below.
static int theLoveLetterMystery(String s) {
int length = s.length();
int forward = 0;
int backward = length - 1;
int operations = 0;
while (backward > forward) {
char forwardChar = s.charAt(forward++);
char backwardChar = s.charAt(backward--);
while (forwardChar != backwardChar){
int backwardIntVal = (int) backwardChar;
int fwdIntVal = (int) forwardChar;
if(fwdIntVal > backwardIntVal){
forwardChar = (char)(fwdIntVal -1);
operations++;
}else{
backwardChar = (char)(backwardIntVal -1);
operations++;
}
}
}
return operations;
}
private static final Scanner scanner = new Scanner(System.in);
public static void main(String[] args) throws IOException {
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
int q = scanner.nextInt();
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
for (int qItr = 0; qItr < q; qItr++) {
String s = scanner.nextLine();
int result = theLoveLetterMystery(s);
bufferedWriter.write(String.valueOf(result));
bufferedWriter.newLine();
}
bufferedWriter.close();
scanner.close();
}
}