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利用make_heap建立小根堆，首先要#include<functional>

vector
   
     mm85;	mm85.push_back(4);	mm85.push_back(1);	mm85.push_back(7);	mm85.push_back(2);	mm85.push_back(5);	mm85.push_back(8);	mm85.push_back(3);	mm85.push_back(9);	mm85.push_back(6);	cout << "建堆:"<