oi学习之stl min_element() & max_element()

#include<algorithm>
// 还是万能的 algorithm 库

template <class ForwardIterator>
  ForwardIterator min_element (ForwardIterator first, ForwardIterator last);

template <class ForwardIterator>
  ForwardIterator max_element (ForwardIterator first, ForwardIterator last);

template <class ForwardIterator, class Compare>
  ForwardIterator min_element (ForwardIterator first, ForwardIterator last,
                               Compare comp);

template <class ForwardIterator, class Compare>
  ForwardIterator max_element (ForwardIterator first, ForwardIterator last,
                               Compare comp);

int a[10]={0,9,2,6,4,3,5,7,8,1};
int id=binary_search(a,a+10,5);
int* id1=max_element(a,a+10);
int* id2=min_element(a,a+10);
int pos1= id1-a;//指针转下标
int pos2= id2-a;
//这句输出下标
cout<<pos1<<" "<<pos2<<endl;
//这句输出值
cout<<*id1<<" "<<*id2<<endl;