If the value of next [ i ] [ j ] is infinite then update it with next [ i ] [ j + 1 ]
for ( int i = 0 ; i < 26 ; i ++ ) { for ( int j = sizeOfB - 2 ; j >= 0 ; j -- ) { if ( next [ i ] [ j ] == inf ) { next [ i ] [ j ] = next [ i ] [ j + 1 ] ; } } }