C++练习10.27

#include <iostream>
#include <cmath>
using namespace std;
int main(){int n;cin>>n;//输入给出的正数的个数int*arr=new int[n];for(int i=0;i<n;i++){cin>>arr[i];}//循环输入所有正数int maxPos=0,minPos=0;for(int i=1;i<n;i++){if(arr[i]>arr[maxPos]){maxPos=i;}if(arr[i]<arr[minPos]){minPos=i;}}int temp=arr[0];//交换最小值和首位arr[0]=arr[minPos];arr[minPos]=temp;if (maxPos == 0) {maxPos = minPos;}temp=arr[n-1];//交换最大值和尾位arr[n-1]=arr[maxPos];arr[maxPos]=temp;for(int i=0;i<n;i++){cout<<arr[i]<<" ";}//循环输出
    delete[]arr;return 0;
}

#include <iostream>
using namespace std;
int func(int first,int second);int main(){int n;cin>>n;int*arr=new int[n];for(int i=0;i<n;i++){cin>>arr[i];}int counter=0;for(int i=1;i<n;i++){int temp=func(arr[i-1],arr[i]);if(counter!=0){cout<<" ";}cout<<temp;if(counter==2){cout<<endl;counter=0;}else{counter++;}}return 0;
}
int func(int first,int second){return second-first;
}