Mảng 2 chiều

#include <iostream>
#include <conio.h>
#include <time.h>
#include <stdlib.h>
#define Mrow 100
#define Mcol 100
using namespace std;
int nhap(int a[3][3])
{
    int  i,j;
    for (i=0;i<3;i++)
        for (j=0;j<3;j++)
            cin>>a[i][j];
    getch();
}
int hienthi(int a[3][3])
{
    int  i,j;
    for (i=0;i<3;i++)   {
        for (j=0;j<3;j++)
            cout<<a[i][j]<<" ";
        cout<<endl;     }

}
int ngaunhien(int a[3][3])
{
    int  i,j;
    srand((unsigned)time(NULL));
    for (i=0;i<3;i++){
        for (j=0;j<3;j++)
            a[i][j]=rand()%100;
                     }
}
int hienthingaunhien(int a[3][3])
{
    int  i,j;
    for (i=0;i<3;i++)   {
        for (j=0;j<3;j++)
            cout<<a[i][j]<<" ";
        cout<<endl;
                        }
}

int nhapvoigiatribatky(int a[Mrow][Mcol],int& m,int& n) //có dấu & để khi truy xuất ở dưới nó sẽ truyền ngược trở lại vào hàm int nhap() nếu không sẽ bị lặp vô hạn.
{
    int  i,j;
    cout<<"Nhap kich thuoc dong & cot:"<<endl;
    cin>>m;
    cin>>n;
    for (i=0;i<m;i++)
    {
        for (j=0;j<n;j++)
            cin>>a[i][j];
    }
    getch();
}
int hienthivoigiatribatky(int a[Mrow][Mcol],int& m,int& n)
{
    int  i,j;
    for (i=0;i<m;i++)
    {
        for (j=0;j<n;j++)
            cout<<a[i][j]<<" ";
        cout<<endl;
    }

}
int chepdong(int a[Mrow][Mcol],int m,int n)
//chép dòng k-->h
{
    int  i,j,h,k;
    cout<<"chon dong nguon & dong chep de len:"<<endl;
    cin>>k;
    cin>>h;
    if (k<1 || k>m || h<1 || h>m)
        {
            return(0);
        }
    for (i=0;i<n;i++)
        {
            a[h-1][i]=a[k-1][i];
        }
    for (i=0;i<m;i++)
        {
            for (j=0;j<n;j++)
                cout<<a[i][j]<<" ";
            cout<<endl;
        }

}

int chepcot(int a[Mrow][Mcol],int m,int n)
//chép cột k-->h
{
    int  i,j,h,k;
    cout<<"chon cot nguon & cot chep de len:"<<endl;
    cin>>k;
    cin>>h;
    if (k<1 || k>m || h<1 || h>m)
        {
            return(0);
        }
    for (i=0;i<m;i++)
        {
            a[i][h-1]=a[i][k-1];
        }
    for (i=0;i<m;i++)
        {
            for (j=0;j<n;j++)
                cout<<a[i][j]<<" ";
            cout<<endl;
        }
}

int hoandoidong(int a[Mrow][Mcol],int m,int n)
{
    int i,j,h,k,temp;
    cout<<"chon 2 dong can hoan doi"<<endl;
    cin>>h;
    cin>>k;
    if (k==h) return(0);
    for (i=0;i<n;i++)
        {
            temp=a[k-1][i];
            a[k-1][i]=a[h-1][i];
            a[h-1][i]=temp;
        }
    for (i=0;i<m;i++)
        {
            for (j=0;j<n;j++)
                cout<<a[i][j]<<" ";
            cout<<endl;
        }
}
int hoandoicot(int a[Mrow][Mcol],int m,int n)
{
    int i,j,h,k,temp;
    cout<<"chon 2 cot can hoan doi"<<endl;
    cin>>h;
    cin>>k;
    if (k==h) return(0);
    for (i=0;i<m;i++)
        {
            temp=a[i][k-1];
            a[i][k-1]=a[i][h-1];
            a[i][h-1]=temp;
        }
    for (i=0;i<m;i++)
        {
            for (j=0;j<n;j++)
                cout<<a[i][j]<<" ";
            cout<<endl;
        }
}
int loaibodong(int a[Mrow][Mcol],int& m,int n)
{
    int i,j,k;
    cout<<"nhap dong can loai bo"<<endl;
    cin>>k;
    if (k<0 || k>m) return(0);
    for(i=k-1;i<m-1;i++)
        {
            for(j=0;j<n;j++)
                a[i][j]=a[i+1][j];
        }
    m--;
    for (i=0;i<m;i++)
        {
            for (j=0;j<n;j++)
                cout<<a[i][j]<<" ";
            cout<<endl;
        }
}
int loaibocot(int a[Mrow][Mcol],int m,int& n)
{
    int i,j,k;
    cout<<"nhap cot can loai bo"<<endl;
    cin>>k;
    if (k<0 || k>n) return(0);
    for(i=k-1;i<n-1;i++)
        {
            for(j=0;j<m;j++)
                a[i][j]=a[i][j+1];
        }
    n--;
    for (i=0;i<m;i++)
        {
            for (j=0;j<n;j++)
                cout<<a[i][j]<<" ";
            cout<<endl;
        }
}


int main()
{
    int a[Mrow][Mcol],m,n;
    nhapvoigiatribatky(a,m,n);
    hienthivoigiatribatky(a,m,n);
    //ngaunhien(a);
    //hienthingaunhien;
    //chepdong(a,m,n);
    //chepcot(a,m,n);
    //hoandoidong(a,m,n);
    //hoandoicot(a,m,n);
    //loaibodong(a,m,n);
    //loaibocot(a,m,n);
    getch();
}