求数组a[3][3]={{3,3}{2,3,4}{3,6,9}}中个元素的和

求数组a[3][3]={{3,3}{2,3,4}{3,6,9}}中个元素的和

 

#include
main()
{
 int a[3][3]={{3,3},{2,3,4},{3,6,9}};
 int i,j,sum=0;
 for(i=0,sum2=0;i<3;i++)
 {
  for(j=0,sum1=0;j<3;j++)
  {
     sum=sum+a[i][j];
  }
  
 }
 printf("%d",sum);
                                                                                                 
}