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g2301_2400.s2315_count_asterisks.readme.md Maven / Gradle / Ivy

2315\. Count Asterisks

Easy

You are given a string `s`, where every **two** consecutive vertical bars `'|'` are grouped into a **pair**. In other words, the 1st and 2nd `'|'` make a pair, the 3rd and 4th `'|'` make a pair, and so forth.

Return _the number of_ `'*'` _in_ `s`_, **excluding** the_ `'*'` _between each pair of_ `'|'`.

**Note** that each `'|'` will belong to **exactly** one pair.

**Example 1:**

**Input:** s = "l|\*e\*et|c\*\*o|\*de|"

**Output:** 2

**Explanation:** The considered characters are underlined: "l|\*e\*et|c\*\*o|\*de|".

The characters between the first and second '|' are excluded from the answer.

Also, the characters between the third and fourth '|' are excluded from the answer. There are 2 asterisks considered. Therefore, we return 2.

**Example 2:**

**Input:** s = "iamprogrammer"

**Output:** 0

**Explanation:** In this example, there are no asterisks in s. Therefore, we return 0. 

**Example 3:**

**Input:** s = "yo|uar|e\*\*|b|e\*\*\*au|tifu|l"

**Output:** 5

**Explanation:** The considered characters are underlined: "yo|uar|e\*\*|b|e\*\*\*au|tifu|l".

There are 5 asterisks considered. Therefore, we return 5.

**Constraints:**

*   `1 <= s.length <= 1000`
*   `s` consists of lowercase English letters, vertical bars `'|'`, and asterisks `'*'`.
*   `s` contains an **even** number of vertical bars `'|'`.