05 August 2008
array中元素相乘后的乘积，正负零返回
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class Solution {
public int arraySign(int[] nums) {
if (nums == null || nums.length == 0) {
return 0;
}
int count = 0;
for (int num : nums) {
if (num == 0) {
return 0;
}
if (num < 0) {
count++;
}
}
return count % 2 == 0 ? 1 : -1;
}
}