comefrom: <awangdev>Best Time to Buy and Sell Stock IV_1.java
code: 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[n][statusLength];
          dp[0][0] = 0; 
  
          for (int i = 1; i < n; i++) {
              for (int j = 1; j < statusLength; j++) {
                  if (j % 2 == 0) {
                      dp[i][j] = Math.max(dp[i - 1][j], dp[i - 1][j - 1] + prices[i] - prices[i - 1]);
                      profit = Math.max(profit, dp[i][j]);
                  } else {
                      dp[i][j] = Math.max(dp[i - 1][j] + prices[i] - prices[i - 1], dp[i - 1][j - 1]);
                  }
              }
          }
          return profit;
      }
masked: 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_2 = 0 ;
    int var_3 = var_1 . length ;
    int var_4 = 2 * var_0 + 1 ;
    if ( var_0 >= var_3 / 2 ) {
      for ( int var_5 = 1 ;
      var_5 < var_3 ;
      var_5 ++ ) {
        if ( var_1 [ var_5 ] > var_1 [ var_5 - 1 ] ) {
          var_2 += var_1 [ var_5 ] - var_1 [ var_5 - 1 ] ;
        }
      }
      return var_2 ;
    }
    int [ ] [ ] var_6 = new int [ var_3 ] [ var_4 ] ;
    var_6 [ 0 ] [ 0 ] = 0 ;
    for ( int var_5 = 1 ;
    var_5 < var_3 ;
    var_5 ++ ) {
      for ( int var_7 = 1 ;
      var_7 < var_4 ;
      var_7 ++ ) {
        if ( var_7 % 2 == 0 ) {
          var_6 [ var_5 ] [ var_7 ] = Math . max ( var_6 [ var_5 - 1 ] [ var_7 ] , var_6 [ var_5 - 1 ] [ var_7 - 1 ] + var_1 [ var_5 ] - var_1 [ var_5 - 1 ] ) ;
          var_2 = Math . max ( var_2 , var_6 [ var_5 ] [ var_7 ] ) ;
        }
        else {
          var_6 [ var_5 ] [ var_7 ] = Math . max ( var_6 [ var_5 - 1 ] [ var_7 ] + var_1 [ var_5 ] - var_1 [ var_5 - 1 ] , var_6 [ var_5 - 1 ] [ var_7 - 1 ] ) ;
        }
      }
    }
    return var_2 ;
  }
  