Update and rename Sum of square numbers.java to Sum of Square Numbers.java

Author: varunu28

Easy/Sum of Square Numbers.java

@@ -0,0 +1,17 @@
+class Solution {
+  public boolean judgeSquareSum(int c) {
+    int left = 0;
+    int right = (int) Math.sqrt(c);
+    while (left <= right) {
+      int currSquareSum = left * left + right * right;
+      if (currSquareSum < c) {
+        left++;
+      } else if (currSquareSum > c) {
+        right--;
+      } else {
+        return true;
+      }
+    }
+    return false;
+  }
+}