Edit Data Array 2 Dimensi

ini buat yg masih bingung bagaimana cara  edit data pada array 2 dimensi...yuuuk mari kita simak !!!!!!

#include <iostream>

#include <conio>

int main(){

typedef int matrik[100][100];

matrik a;

int b,c,x,y,d,e,f;

cout<<"\n masukkan kolom  =";cin>>d;

cout<<"\n masukkan baris  =";cin>>e;

for(x=0;x<d;x++)

{

for(y=0;y<e;y++)

{

cout<<"\nmatrik a["<<x<<"]["<<y<<"]=";

cin>>a[x][y];}

}cout<<endl;

cout<<"======================================"<<endl;

cout<<"masukkan data yg akan di edit =\n";

cin>>f;

for(x=0;x<d;x++)

{

for(y=0;y<e;y++)

{

if(a[x][y]==f)

{cout<<"\n masukkan data yg baru =";

cin>>c;

a[x][y]=c;

     }

   }

}

cout<<"\n matrik yg baru =\n";

for(x=0;x<d;x++)

{

for(y=0;y<e;y++)

{cout<<a[x][y]<<"\t";

}

cout<<"\n";

}

getch(); }