static int maxRowDiff ( int mat [ ] [ ] , int m , int n ) {
  int rowSum [ ] = new int [ m ] ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) {
    int sum = 0 ;
    for ( int j = 0 ;
    j < n ;
    j ++ ) sum += mat [ i ] [ j ] ;
    rowSum [ i ] = sum ;
  }
  int max_diff = rowSum [ 1 ] - rowSum [ 0 ] ;
  int min_element = rowSum [ 0 ] ;
  for ( int i = 1 ;
  i < m ;
  i ++ ) {
    if ( rowSum [ i ] - min_element > max_diff ) max_diff = rowSum [ i ] - min_element ;
    if ( rowSum [ i ] < min_element ) min_element = rowSum [ i ] ;
  }
  return max_diff ;
}

static int maxRowDiff ( int mat [ ] [ ] , int m , int n ) { int rowSum [ ] = new int [ m ] ; for ( int i = 0 ; i < m ; i ++ ) { int sum = 0 ; for ( int j = 0 ; j < n ; j ++ ) sum += mat [ i ] [ j ] ; rowSum [ i ] = sum ; } int max_diff = rowSum [ 1 ] - rowSum [ 0 ] ; int min_element = rowSum [ 0 ] ; for ( int i = 1 ; i < m ; i ++ ) { if ( rowSum [ i ] - min_element > max_diff ) max_diff = rowSum [ i ] - min_element ; if ( rowSum [ i ] < min_element ) min_element = rowSum [ i ] ; } return max_diff ; }
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