1.题目:
从屏幕中输入整数n的值,并且输入n个实数,存入一个vector向量中,然后对这些实数进行从小到大的排序。将排好序的结果打印在屏幕上的同时,输出到文件“result.txt”中
code
#include<iostream>
#include<fstream>
#include<vector>
#include<algorithm> //sort function in this head file
using namespace std;
int main()
{
int n;
cout<<"please enter the number of n:";
cin>>n;
vector<double>score(n) ;//默认用0进行初始化
for(int i=0;i<n;i++)
{
cin>>score[i];
}
cout<<endl;
sort(score.begin(),score.end());//从小到大排序
ofstream file("C:\\Users\\chenh\\Desktop\\ctest.txt",ios_base::out);
for(int i=0;i<n;i++)
{
file<<score[i]<<" ";
cout<<score[i]<<" ";
}
file.close();
}