What are the values of n and m you are providing???

On Tue, Sep 20, 2011 at 7:02 PM, deependra <[email protected]>wrote:

> long int n,m;
>              cin>>n>>m;
>             long int a[n][m];
>              a[0][0]=1;
>              for(long int i=1;i<n;i++)
>              a[i][0]=0;
>              for(long int i=1;i<m;i++)
>              a[0][i]=0;
>               long int z=0;
>              for(long int i=1;i<n;i++)
>              {
>                      for( long int j=1;j<m;j++)
>                      {
>                              a[i][j]=(j*(a[i-1][j]) + a[i-1][j-1] );
>                              z=a[i][j];
>                              }
>                              }
>                  int mod= z%2;
>               cout<<mod<<endl;
>
> m getting segmentation fault error at run time in the above code.
> can any one explain segmentation fault and how to remove it??
>
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