300. 最长递增子序列

class Solution:
    def lengthOfLIS(self, nums: List[int]) -> int:
        n = len(nums)
        dp = [1] * n
        for i in range(1, n):
            for j in range(i):
                if nums[j] < nums[i]:
                    dp[i] = max(dp[i], dp[j] + 1)
        return max(dp)

class Solution {
    public int lengthOfLIS(int[] nums) {
        int n = nums.length;
        int[] dp = new int[n];
        Arrays.fill(dp, 1);
        int res = 1;
        for (int i = 1; i < n; ++i) {
            for (int j = 0; j < i; ++j) {
                if (nums[j] < nums[i]) {
                    dp[i] = Math.max(dp[i], dp[j] + 1);
                }
            }
            res = Math.max(res, dp[i]);
        }
        return res;
    }
}

function lengthOfLIS(nums: number[]): number {
    let n = nums.length;
    let dp = new Array(n).fill(1);
    for (let i = 0; i < n; i++) {
        for (let j = 0; j < i; j++) {
            if (nums[j] < nums[i]) {
                dp[i] = Math.max(dp[i], dp[j] + 1);
            }
        }
    }
    return Math.max(...dp);
}

class Solution {
public:
    int lengthOfLIS(vector<int>& nums) {
        int n = nums.size();
        vector<int> dp(n, 1);
        for (int i = 1; i < n; ++i)
        {
            for (int j = 0; j < i; ++j)
            {
                if (nums[j] < nums[i]) dp[i] = max(dp[i], dp[j] + 1);
            }
        }
        return *max_element(dp.begin(), dp.end());
    }
};

func lengthOfLIS(nums []int) int {
	n := len(nums)
	dp := make([]int, n)
	dp[0] = 1
	res := 1
	for i := 1; i < n; i++ {
		dp[i] = 1
		for j := 0; j < i; j++ {
			if nums[j] < nums[i] {
				dp[i] = max(dp[i], dp[j]+1)
			}
		}
		res = max(res, dp[i])
	}
	return res
}

func max(a, b int) int {
	if a > b {
		return a
	}
	return b
}