请问C++ sort函数？

Question

C++ sort函数

Answer 1

sort接受的是参数是指针或迭代器，sort(a[0],a[n]);你这里只是2个元素。可以自写比较函数，也可以用标准定义好的函数对象：#include <iostream>#include <algorithm>#include <functional>using namespace std;bool sort_desc(int a, int b){return a > b;}bool sort_asc(int a, int b){return a < b;}void p(int* begin, int* end){while(begin < end)cout << *begin++ << ' ';cout << endl;}int main(){int a[] = {6,9,1,3,5,2,7,0,4,8};sort(a, a + 10, sort_desc);p(a, a + 10);sort(a, a + 10, sort_asc);p(a, a + 10);sort(a, a + 10, greater<int>());p(a, a + 10);sort(a, a + 10, less<int>());p(a, a + 10);}