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| cnt = 0 | |
| def solution(numbers, target): | |
| answer = 0 | |
| global cnt | |
| dfs(0, numbers, 0, target) | |
| return cnt | |
| def dfs(index, numbers, temp, target): | |
| global cnt | |
| if index == len(numbers): | |
| if temp == target: | |
| cnt += 1 | |
| return | |
| dfs(index+1, numbers, temp+numbers[index], target) | |
| dfs(index+1, numbers, temp-numbers[index], target) |
