Question

声明一个整型数组，使用C++标准模版库（STL）中的查找算法find（）进行数据的查找，然后应用排序算法sort（

sort（）对数据进行升序或降序排列

Answer 1

#include <iostream>
using std::cout;
using std::endl;

#include <algorithm>
#include <functional>

void print(int *begin, int *end) {
while (begin != end)
cout << *begin++ << " ";
cout << endl;
}

int main()
{
int array[] = { 1, 4, 2, 3, 5, };

cout << "looking for 3: " << endl;
cout << *(std::find(array, array + 5, 3)) << endl;

cout << "sorting ascending" << endl;
std::sort(array, array + 5);
print(array, array + 5);

cout << "sorting descending" << endl;
std::sort(array, array + 5, std::greater<int>());
print(array, array + 5);

return 0;
}