text: Loop to iterate over the dp table of the given matrix
code: for ( int k = 1 ; k <= K ; k ++ ) { for ( int r = R - 1 ; r >= 0 ; r -- ) { for ( int c = C - 1 ; c >= 0 ; c -- ) { if ( k == 1 ) { dp [ k ] [ r ] = ( preSum [ r ] > 0 ) ? 1 : 0 ; } else { dp [ k ] [ r ] = 0 ; for ( int r1 = r + 1 ; r1 < R ; r1 ++ ) {