力扣896

bool isMonotonic(int* nums, int numsSize) {
    if (numsSize <= 1) {
        return true;
    }
    
    bool isIncreasing = true;
    bool isDecreasing = true;
    
    for (int i = 1; i < numsSize; i++) {
        if (nums[i] > nums[i - 1]) {
            isDecreasing = false;
        }
        if (nums[i] < nums[i - 1]) {
            isIncreasing = false;
        }
    }
    
    return isIncreasing || isDecreasing;
}

class Solution:
    def isMonotonic(self, nums: List[int]) -> bool:
        # 初始化标志变量
        isIncreasing = True
        isDecreasing = True
        
        # 遍历数组
        for i in range(1, len(nums)):
            if nums[i] > nums[i - 1]:
                isDecreasing = False
            if nums[i] < nums[i - 1]:
                isIncreasing = False
        
        # 返回结果
        return isIncreasing or isDecreasing