leetcode268最大整除子集

 

 

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class Solution {
public:
    vector<int> largestDivisibleSubset(vector<int>& nums) {
        int p[1001],q[1001];
        
        memset(q,0,sizeof(q));
        sort(nums.begin(),nums.end());
        int i,j;
        for(i=0;i<1001;i++){
            p[i]=1;
        }
        p[0]=1;
        q[0]=nums[0];
        vector<int> l;
        l.push_back(nums[0]);
        vector<vector<int>> a;
        a.push_back(l);
        int maxx=0;
        int maxpos=0;
        for(i=1;i<nums.size();i++){
            l.clear();
            for(j=0;j<i;j++){
                if(nums[i]%nums[j]==0){
                    if(p[i]<p[j]+1){
                        p[i]=p[j]+1;
                        l=a[j];
                    }
                    //l=a[j];
                    if(p[i]>maxx){
                        maxx=p[i];
                        maxpos=i;
                    }
                }

            }
            cout<<p[i]<<" ";
            l.push_back(nums[i]);
            a.push_back(l);
        }
        return a[maxpos];
    }
};