text: This function adds A [ ] [ ] and B [ ] [ ] , and stores the result in C [ ] [ ]
code: static void add ( int A [ ] [ ] , int B [ ] [ ] , int C [ ] [ ] ) { int i , j ; for ( i = 0 ; i < N ; i ++ ) for ( j = 0 ; j < N ; j ++ ) C [ i ] [ j ] = A [ i ] [ j ] + B [ i ] [ j ] ; }