WAP for finding a location

#include<iostream.h>

#include<conio.h>

void main()

{

 int a[4][4],n,m,i,j,loc=0,key;

 cout<<"\n enter size of rows :";

 cin>>n;

 cout<<"\n enter size of collumns  :";

 cin>>m;

 cout<<"\n enter element of 2d array :";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cin>>a[i][j];

}

}

 cout<<"\n 2d array \n\n\n:";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cout<<"\t"<<a[i][j];

}

cout<<"\n";

}

cout<<"\n\n Enter element which location is to be search  :";

cin>>key;

for(i=1;i<=n;i++)

{

 for(j=1;j<=m;j++)

 {

   if(a[i][j]==key)

   {

    cout<<"\nelemt is present at "<< i << "row and "<<j<< "column";

    break;

   }

 }

}

getch();

clrscr();

 }