문자열안의 문자 찾기

Author: holmir97

StringMatchingInArray.java

@@ -0,0 +1,37 @@
+import java.util.*;
+
+// my solution
+public class StringMatchingInArray {
+    public List<String> stringMatching(String[] words) {
+        List<String> lists = new ArrayList<>();
+        String[] tmp = words;
+
+        for (int i = 0; i < words.length; i++) {
+            for (int j = 0; j < words.length; j++) {
+                if (tmp[i].contains(words[j]) && tmp[i] != words[j]) {
+                    if (!lists.contains(words[j]))
+                        lists.add(words[j]);
+                }
+            }
+        }
+        return lists;
+    }
+}
+
+/* best solution
+class Solution {
+    public List<String> stringMatching(String[] words) {
+        StringBuilder sb = new StringBuilder();
+        for(String str : words)
+            sb.append(" ").append(str);
+        String allstr = sb.toString();
+
+        List<String> result = new LinkedList<>();
+        for(String str : words)
+            if(allstr.indexOf(str) != allstr.lastIndexOf(str))
+                result.add(str);
+
+        return result;
+    }
+}
+ */