solved leetcode 657 attempt 1

solutions/leetcode/Problem657.java

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+// General imports
+
+import java.util.*;
+import java.io.*;
+import java.math.*;
+
+public class Problem657 {
+  public static void main(String[] args) {
+
+    Scanner sc = new Scanner(System.in);
+
+    // Write code here
+
+    String s = sc.nextLine();
+
+    System.out.println(judgeCircle(s));
+
+    sc.close();
+
+  }
+
+  public static boolean judgeCircle(String moves) {
+    int verticalPos = 0;
+    int horizontalPos = 0;
+
+    for (char c : moves.toCharArray()) {
+      if (c == 'R') {
+        horizontalPos++;
+      } else if (c == 'L') {
+        horizontalPos--;
+      }
+
+      if (c == 'U') {
+        verticalPos++;
+      } else if (c == 'D') {
+        verticalPos--;
+      }
+    }
+
+    return (verticalPos == 0 && horizontalPos == 0);
+  }
+}