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class Solution {
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  public int arraySign(int[] nums) {
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    int prod = 1;
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    for (int i = 0; i < nums.length; i++) {
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      int val = signFunc(nums[i]);
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      prod *= val;
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    }
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    return prod;
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  }
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  private int signFunc(int x) {
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    if (x < 0) return -1;
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    else if (x > 0) return 1;
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    return 0;
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  }
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}