tracks/dart/exercises/difference-of-squares/lib/example.dart in trackler-2.2.1.113 vs tracks/dart/exercises/difference-of-squares/lib/example.dart in trackler-2.2.1.114

@@ -1,12 +1,12 @@
 import "dart:math" show pow;
 
 class DifferenceOfSquares {
-  int squareOfSums(int input) => pow(_sum(input), 2);
+  int squareOfSum(int input) => pow(_sum(input), 2);
 
-  int sumOfSquares(int input) => _range(input).map((i) => pow(i, 2)).reduce((r, i) => r + i);
+  int sumOfSquare(int input) => _range(input).map((i) => pow(i, 2)).reduce((r, i) => r + i);
 
-  int difference(int input) => squareOfSums(input) - sumOfSquares(input);
+  int differenceOfSquares(int input) => squareOfSum(input) - sumOfSquare(input);
 
   int _sum(int input) => input * (input + 1) ~/ 2;
 
   List<int> _range(int length) => new List<int>.generate(length, (i) => i + 1);
 }