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Mar 27th, 2017
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  1. public static void switchPairs(Stack<Integer> actual) {
  2. for(int i = 0; i < actual.size()-1; i+=2) {
  3. int temp = actual.get(i);
  4. actual.set(i, actual.get(i+1));
  5. actual.set(i+1, temp);
  6. }
  7. }
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