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问题:
解答:
#include <iostream>
#include <list>
using namespace std;template<typename T>
int reduce(T ar[], int n)
{list<T>ls;ls.insert(ls.end(), ar, ar + n);ls.sort();ls.unique();auto pd = ls.begin();for (int i = 0; i < ls.size(); i++, pd++){*(ar + i) = *pd;}return ls.size();
}int main()
{long ar[5] = { 45000,3400,45000,100000,2500 };int resize = reduce(ar, 5);cout << "array: \n";for (int i = 0; i < resize; i++){cout << ar[i] << " ";}string ar2[6] = { "it","aboard","it","zone","quit","aa" };resize = reduce(ar2, 6);cout << "\narray2: \n";for (int i = 0; i < resize; i++){cout << ar2[i] << " ";}return 0;
}
运行结果:
考查点:
- 模板函数
- list容器
2024年9月17日20:34:04