From f07b3b6617de864a6bd4c51fb90fea9bee2471e6 Mon Sep 17 00:00:00 2001
From: kxtzzl <123520267+romchhh@users.noreply.github.com>
Date: Thu, 11 May 2023 00:50:04 +0300
Subject: [PATCH] Update lab3

---
 lab3 | 41 +++++++++++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 8 deletions(-)

diff --git a/lab3 b/lab3
index 378f3d8..ba23f99 100644
--- a/lab3
+++ b/lab3
@@ -1,6 +1,6 @@
 import java.util.Scanner;
 
-public class lab3 {
+public class Lab5 {
     public static void main(String[] args) {
 
         int C17 = 2430 % 17;
@@ -19,15 +19,39 @@ public class lab3 {
             String[] words = sb.toString().split("\\s+");
             for (int i = 0; i < words.length; i++) {
                 String word = words[i];
-                char lastLetter = word.charAt(word.length() - 1);
-                String newWord = "";
-                for (int j = 0; j < word.length() - 1; j++) {
-                    if (word.charAt(j) != lastLetter) {
-                        newWord += word.charAt(j);
+                char lastChar = word.charAt(word.length() - 1);
+                if (!Character.isLetterOrDigit(lastChar)) {
+                    // Last character is a punctuation mark
+                    int lastLetterIndex = -1;
+                    for (int j = word.length() - 2; j >= 0; j--) {
+                        if (Character.isLetter(word.charAt(j))) {
+                            lastLetterIndex = j;
+                            break;
+                        }
                     }
+                    if (lastLetterIndex != -1) {
+                        char lastLetter = word.charAt(lastLetterIndex);
+                        String newWord = "";
+                        for (int j = 0; j < word.length() - 1; j++) {
+                            if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
+                                newWord += word.charAt(j);
+                            }
+                        }
+                        newWord += lastChar;
+                        words[i] = newWord;
+                    }
+                } else {
+                    // Last character is a letter or a digit
+                    char lastLetter = lastChar;
+                    String newWord = "";
+                    for (int j = 0; j < word.length() - 1; j++) {
+                        if (!Character.isLetterOrDigit(word.charAt(j)) || word.charAt(j) != lastLetter) {
+                            newWord += word.charAt(j);
+                        }
+                    }
+                    newWord += lastLetter;
+                    words[i] = newWord;
                 }
-                newWord += lastLetter;
-                words[i] = newWord;
             }
             System.out.print("\nFinal string: ");
             System.out.println(String.join(" ", words));
@@ -36,3 +60,4 @@ public class lab3 {
         }
     }
 }
+