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- Practice
- Algorithms
- Bit Manipulation
- Sum vs XOR

# Sum vs XOR

# Sum vs XOR

Given an integer , find each such that:

where denotes the bitwise XOR operator. Return the number of 's satisfying the criteria.

**Example**

There are four values that meet the criteria:

Return .

**Function Description**

Complete the sumXor function in the editor below.

sumXor has the following parameter(s):

- *int n:* an integer

**Returns**

- *int:* the number of values found

**Input Format**

A single integer, .

**Constraints**

**Subtasks**

- for of the maximum score.

**Output Format**

**Sample Input 0**

```
5
```

**Sample Output 0**

```
2
```

**Explanation 0**

For , the values and satisfy the conditions:

**Sample Input 1**

```
10
```

**Sample Output 1**

```
4
```

**Explanation 1**

For , the values , , , and satisfy the conditions: