数组

#include <iostream>#include <iomanip>using namespace std;int main(){    int a[5][4]={{1,3},{2,4},{3,3},{7,6},{5,8}};    int i,j;    cout<<"请输入十个值:"<<endl;    for(j=2,i=0;i<=4;i++)    cin>>a[i][2];    for(j=3,i=0;i<=4;i++)    cin>>a[i][3];    cout<<"数组中的值为:"<<endl;    for(i=0;i<=4;i++)   {       cout<<"第"<<i<<"行:";       for(j=0;j<=3;j++)       {cout<<setw(5)<<a[i][j];       }       cout<<endl;   }   cout<<"将所有元素乘以3保存在数组中!"<<endl;   cout<<"行序优先输出:"<<endl;   for(i=0;i<=4;i++)   {       cout<<"第"<<i<<"行:";       for(j=0;j<=3;j++)       {   a[i][j]=a[i][j]*3;           cout<<setw(5)<<a[i][j];       }       cout<<endl;}       cout<<"列序优先输出:"<<endl;   for(j=0;j<=3;j++)   {       cout<<"第"<<j<<"列:";        for(i=0;i<=4;i++)           {           cout<<setw(5)<<a[i][j];       }       cout<<endl;       }       cout<<"倒着输出:"<<endl;       for(i=4;i>=0;i--)       {       for(j=3;j>=0;j--)       cout<<setw(5)<<a[i][j]/3;       }       cout<<endl;