兩個函數，main函數的兩個參數

兩個函數，main函數的兩個參數

編寫兩個函數，其功能分別是：

① 求N個整數的次大值和次小值。

② 求兩個整數的最大公約數和最小公倍數。

#include<iostream>

using namespace std;

void main()

{

         int secondlarge, secondsmall;

         int *p1;

         int *p2;

         int n;

         cout<<"輸入數目的個數"<<endl;

         cin>>n;

         p1=new int [n];

         p2=new int[n];

         cout<<"輸入"<<n<<"個數"<<endl;

         for(int i=0;i<n;i++)

         {

                   cin>>p1[i];

                   p2[i]=p1[i];

         }

         for(int j=0;j<n;j++)

         {

                   int counter1=0;

                   int counter2=0;

                   for(int k=0;k<n;k++)

                   {

                            if(p1[j]>=p2[k])

                                     counter1++;

                            if(p1[j]<=p2[k])

                                     counter2++;

                   }

                   if(counter1==n-1)

                            secondlarge=p1[j];

                   if(counter2==n-1)

                            secondsmall=p1[j];

         }

         cout<<"次大數為 "<<secondlarge<<endl;

         cout<<"次小數為 "<<secondsmall<<endl;

         cin.get();

         cin.get();

}

#include <iostream>

using namespace std;

int main()

{

         int i,j,k,r,m;

         cout<<"請輸入兩個數："<<endl;

         cin>>i>>j;

         m=i*j;

         if(i<j)

         {

                   k=i;

                   i=j;

                   j=k;

         }

         if(i%j!=0)

         {

                   r=i%j;

                   i=j;

                   j=r;

         }

         m=m/j;

         cout<<i<<"和"<<j<<"的最大公因數為："<<j<<endl;

         cout<<i<<"和"<<j<<"的最小公倍數為："<<m<<endl;

         return 0;

}