统计一个数组中正数和负数的个数

1.遍历数组，将正数重新放在一个数组中，负数放在另一个数组中

#include <iostream>
using namespace std;
int main()
{
    int a[5],i,j=0,k=0;
    int s1[5],s2[5];
    cout<<"Please enter 5 numbers"<<endl;
    for(i=0;i<5;i++)
        cin>>a[i];
    for(i=0;i<5;i++)
    { 
        if(a[i]>0)
        s1[j++]=a[i];     
        else if(a[i]<0)
         s2[k++]=a[i];
    }
    cout<<"The positive numbers are:"<<endl;
    for(i=0;i<j;i++)
    cout<<s1[i]<<" ";
    cout<<endl;
    cout<<"The negative numbers are:"<<endl;
    for(i=0;i<k;i++)   
    cout<<s2[i]<<" ";
    cout<<endl;
    system("pause");
    return 0;
}

2.显示结果