<awangdev>Best Time to Buy and Sell Stock IV_3.java
public int maxProfit(int k, int[] prices) {
        if (prices == null || prices.length == 0 || k <= 0) {
            return 0;
        }
		int profit = 0;
        int n = prices.length;
		int statusLength = 2 * k + 1;

        if (k >= n/2) {
            for (int i = 1; i < n; i++) {
                if (prices[i] > prices[i - 1]) {
                    profit += prices[i] - prices[i - 1];
                }
            }
            return profit;
        }

        int[][] dp = new int[2][statusLength];
        int prev, curr = 0;
        dp[0][0] = 0; 
        
        for (int i = 1; i < n; i++) {
            prev = curr;
            curr = 1 - prev;
            for (int j = 1; j < statusLength; j++) {
                if (j % 2 == 0) {
                    dp[curr][j] = Math.max(dp[prev][j], dp[prev][j - 1] + prices[i] - prices[i - 1]);
                    profit = Math.max(profit, dp[curr][j]);
                } else {
                    dp[curr][j] = Math.max(dp[prev][j] + prices[i] - prices[i - 1], dp[prev][j - 1]);
                }
            }
        }
        return profit;
    }
public int sample_funcname ( int var_0 , int [ ] var_1 ) {
  if ( var_1 == null || var_1 . length == 0 || var_0 <= 0 ) {
    return 0 ;
  }
  int var_5 = 0 ;
  int var_6 = var_1 . length ;
  int var_9 = 2 * var_0 + 1 ;
  if ( var_0 >= var_6 / 2 ) {
    for ( int var_10 = 1 ;
    var_10 < var_6 ;
    var_10 ++ ) {
      if ( var_1 [ var_10 ] > var_1 [ var_10 - 1 ] ) {
        var_5 += var_1 [ var_10 ] - var_1 [ var_10 - 1 ] ;
      }
    }
    return var_5 ;
  }
  int [ ] [ ] var_11 = new int [ 2 ] [ var_9 ] ;
  int var_12 , var_13 = 0 ;
  var_11 [ 0 ] [ 0 ] = 0 ;
  for ( int var_10 = 1 ;
  var_10 < var_6 ;
  var_10 ++ ) {
    var_12 = var_13 ;
    var_13 = 1 - var_12 ;
    for ( int var_14 = 1 ;
    var_14 < var_9 ;
    var_14 ++ ) {
      if ( var_14 % 2 == 0 ) {
        var_11 [ var_13 ] [ var_14 ] = Math . max ( var_11 [ var_12 ] [ var_14 ] , var_11 [ var_12 ] [ var_14 - 1 ] + var_1 [ var_10 ] - var_1 [ var_10 - 1 ] ) ;
        var_5 = Math . max ( var_5 , var_11 [ var_13 ] [ var_14 ] ) ;
      }
      else {
        var_11 [ var_13 ] [ var_14 ] = Math . max ( var_11 [ var_12 ] [ var_14 ] + var_1 [ var_10 ] - var_1 [ var_10 - 1 ] , var_11 [ var_12 ] [ var_14 - 1 ] ) ;
      }
    }
  }
  return var_5 ;
}
