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// 1822. Sign of the Product of an Array
#include <stdio.h>
/*
* there is a function signFunc(x) that returns
* 1 if x is positive
* -1 if x is negative
* 0 if x is equal to 0
* given an integer array 'nums', let 'product' be the product
* of all values in the array 'nums' return signFunc(product)
*/
int arraySign(int *nums, int nums_size) {
int sign = 1;
for (int i = 0; i < nums_size; i++) {
if (!nums[i])
return 0;
else if (nums[i] < 0)
sign = -sign;
}
return sign;
}
int main() {
int n1[] = {-1, -2, -3, -4, 3, 2, 1};
int n2[] = {1, 5, 0, 2, -3};
int n3[] = {-1, 1, -1, 1, -1};
printf("%d\n", arraySign(n1, 7)); // expect: 1
printf("%d\n", arraySign(n2, 5)); // expect: 0
printf("%d\n", arraySign(n3, 5)); // expect: -1
}
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