[Create] LeetCdoe_1805 정수 추출

Author: holmir97

alphanumeric.java

@@ -0,0 +1,62 @@
+// LeetCode_1805
+// 2021.04.21
+// Easy
+
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+
+public class alphanumeric {
+    public static void main(String[] args) {
+//        System.out.println(new alphanumeric().numDifferentIntegers("a123bc34d8ef34"));
+        System.out.println(new alphanumeric().numDifferentIntegers("167278959591294"));
+    }
+    public int numDifferentIntegers(String word) {
+        StringBuilder s = new StringBuilder(word);
+        List<Integer> list = new ArrayList<>();
+        List<String> sublist = new ArrayList<>();
+        HashSet<List> set1,set2;
+        String tmp ="";
+        int len = s.length();
+
+        for(int i = 0; i<s.length(); i++){
+            if(i == len-1)
+                s.append("e");
+            if(!(s.charAt(i) >= 'a' && s.charAt(i) <= 'z'))
+                tmp += s.charAt(i);
+            else
+                if(!tmp.equals("")) {
+//                    if(word.substring(0,i-tmp.length()).contains(tmp))
+//                        continue;
+                    try {
+                        list.add(Integer.valueOf(tmp));
+                    }catch (NumberFormatException e){
+                        sublist.add(tmp);
+                    }
+                    tmp ="";
+                }
+        }
+
+        set1 = new HashSet(list);
+        set2 = new HashSet(sublist);
+        return set1.size()+ set2.size();
+    }
+}
+
+/*  SimpleSolution_출처: leetcode
+class Solution {
+    public int numDifferentIntegers(String word) {
+        String[] arr = word.replaceAll("[a-zA-Z]", " ").split("\\s+");
+        Set<String> set = new HashSet<String>();
+
+        for (String str : arr) {
+            if (!str.isEmpty())
+                set.add(String.valueOf(str.replaceAll("^0*","")));
+        }
+
+        return set.size();
+    }
+}
+ */
+