Two dimensional array

                                                 Two dimensional Array

                  Two dimensional array syntax

                  datatype variablename arraylenth;

                  Ex:-
                            int a[][];
                            int a[10][10],b[10][10];

                  /* Sum of all the elements in the matrix */
         
                  #include<stdio.h>
                  main()
                  {
                          int j,k,a[2][2],sum=0;
                          printf("\nEnter the elements for matrix a:");
                          for(j=0;j<2;j++)
                          {
                               for(k=0;k<2;k++)
                               {
                                    printf("\nEnter a[%d][%d]:",j,k);
                                    scanf("%d",&a[j][k]);
                                }
                           }
                           printf("\n the matrix is...:\n");
                           for(j=0;j<2;j++)
                           {
                               for(k=0;k<2;k++)
                               {
                                     printf("\t%d",a[j][k]);
                                     sum=sum+a[j][k];
                                }
                                printf("\n");
                            }

         printf("\nthe sum of all elements in the matrix is:%d",sum);
       
          }