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- public void backtracking(ArrayList<ArrayList<Integer>> result, ArrayList<Integer> A, ArrayList<Integer> temp, int B, int sum) {
- if (sum == B) {
- result.add(temp);
- return;
- }
- for (int i = 0; i < A.size(); i++) {
- sum += A.get(i);
- temp.add(A.get(i));
- backtracking(result, A, temp, B, sum);
- sum -= A.get(i);
- temp.remove(temp.size() - 1);
- }
- }
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