comefrom: <awangdev>229. Majority Element II_1.java
code: public List<Integer> majorityElement(int[] nums) {
          List<Integer> result = new ArrayList<>();
          if (nums == null || nums.length == 0) {
              return result;
          }
          int valA = 0, valB = 0, countA = 0, countB = 0;
          for (int num : nums) {
              if (num == valA) {
                  countA++;
              } else if (num == valB) {
                  countB++;
              } else if (countA == 0) {
                  valA = num;
                  countA++;
              } else if (countB == 0){
                  valB = num;
                  countB++;
              } else {
                  countA--;
                  countB--;
              }
          }
          
          countA = 0; 
          countB = 0;
          for (int num : nums) {
              if (num == valA) {
                  countA++;
              } else if (num == valB) {
                  countB++;
              }
          }
          if (countA > nums.length / 3) result.add(valA);
          if (countB > nums.length / 3) result.add(valB);
          return result;
      }
masked: public List < Integer > var_1 ( int [ ] var_2 ) {
    List < Integer > var_5 = new ArrayList < > ( ) ;
    if ( var_2 == null || var_2 . length == 0 ) {
      return var_5 ;
    }
    int var_9 = 0 , var_10 = 0 , var_11 = 0 , var_12 = 0 ;
    for ( int var_13 : var_2 ) {
      if ( var_13 == var_9 ) {
        var_11 ++ ;
      }
      else if ( var_13 == var_10 ) {
        var_12 ++ ;
      }
      else if ( var_11 == 0 ) {
        var_9 = var_13 ;
        var_11 ++ ;
      }
      else if ( var_12 == 0 ) {
        var_10 = var_13 ;
        var_12 ++ ;
      }
      else {
        var_11 -- ;
        var_12 -- ;
      }
    }
    var_11 = 0 ;
    var_12 = 0 ;
    for ( int var_13 : var_2 ) {
      if ( var_13 == var_9 ) {
        var_11 ++ ;
      }
      else if ( var_13 == var_10 ) {
        var_12 ++ ;
      }
    }
    if ( var_11 > var_2 . length / 3 ) var_5 . add ( var_9 ) ;
    if ( var_12 > var_2 . length / 3 ) var_5 . add ( var_10 ) ;
    return var_5 ;
  }
  