1. ๋ฌธ์ : https://leetcode.com/problems/maximum-product-subarray/
ํ์ array ๊ณฑ ์ค ์ต๋๊ฐ
2. ํ์ด
์ค์๊ฐ์ผ๋ก max, min ๊ฐ์ ๊ฐ์ง๊ณ ํ์ฌ ๊ฐ์ ๊ณฑํด์ฃผ๊ณ ๊ฐ์ ๋น๊ตํ๋ ๋ฐฉ์์ผ๋ก ์ต๋๊ฐ์ update
dp ๊ธฐ๋ณธ๋ฌธ์ ..ใ ใ
3. ์ฝ๋
class Solution {
public int maxProduct(int[] nums) {
int maxProducts = nums[0];
int minProducts = nums[0];
int ans = nums[0];
for(int i=1;i<nums.length;i++){
int now = nums[i];
int a = maxProducts * now;
int b = minProducts * now;
maxProducts = Math.max(now, Math.max(a, b));
minProducts = Math.min(now, Math.min(a, b));
ans = Math.max(ans, maxProducts);
}
return ans;
}
};
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