comefrom: <awangdev>122. Best Time to Buy and Sell Stock II_1.java
code: public int maxProfit(int[] prices) {
          if (prices == null || prices.length == 0) {
              return 0;
          }
          int profit = 0;
          for (int i = 1; i < prices.length; i++) {
              if (prices[i] > prices[i - 1]) {
                  profit += prices[i] - prices[i - 1];
              }
          }
          return profit;
      }
masked: public int sample_funcname ( int [ ] var_0 ) {
    if ( var_0 == null || var_0 . length == 0 ) {
      return 0 ;
    }
    int var_4 = 0 ;
    for ( int var_6 = 1 ;
    var_6 < var_0 . length ;
    var_6 ++ ) {
      if ( var_0 [ var_6 ] > var_0 [ var_6 - 1 ] ) {
        var_4 += var_0 [ var_6 ] - var_0 [ var_6 - 1 ] ;
      }
    }
    return var_4 ;
  }
  