别怕麻烦，模拟题有时候就是要多写一些条件（或者你思维很活跃找出规律），代码如下：

class Solution {
public:
    int temperatureTrend(vector<int>& temperatureA, vector<int>& temperatureB) {
        int n = temperatureA.size(),ans = 0,k = 0;
        for(int i=0;i<n-1;i++){
            if(temperatureA[i] < temperatureA[i+1] && temperatureB[i] < temperatureB[i+1] || temperatureA[i] == temperatureA[i+1] && temperatureB[i] == temperatureB[i+1] || temperatureA[i] > temperatureA[i+1] && temperatureB[i] > temperatureB[i+1]){
                k ++;
                ans = max(ans,k);
            }else k = 0;
        }
        return ans;
    }
};

加油