comefrom: <gouthampradhan>bit_manipulation_BinaryNumberWithAlternatingBits_1.java
code: public boolean hasAlternatingBits(int n) {
      int curr = n & 1;
      int pos = 0;
      for (int i = 0; i < 32; i++) {
        if ((n & (1 << i)) > 0) {
          pos = i;
        }
      }
      for (int i = 1; i <= pos; i++) {
        int temp = (1 << i) & n;
        if ((temp > 0 && curr > 0) || (temp == 0 && curr == 0)) return false;
        curr = temp;
      }
      return true;
    }
masked: public boolean var_0 ( int var_1 ) {
    int var_3 = var_1 & 1 ;
    int var_5 = 0 ;
    for ( int var_6 = 0 ;
    var_6 < 32 ;
    var_6 ++ ) {
      if ( ( var_1 & ( 1 << var_6 ) ) > 0 ) {
        var_5 = var_6 ;
      }
    }
    for ( int var_6 = 1 ;
    var_6 <= var_5 ;
    var_6 ++ ) {
      int var_8 = ( 1 << var_6 ) & var_1 ;
      if ( ( var_8 > 0 && var_3 > 0 ) || ( var_8 == 0 && var_3 == 0 ) ) return false ;
      var_3 = var_8 ;
    }
    return true ;
  }
  