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2315. Count Asterisks
Description
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 <= 1000sconsists of lowercase English letters, vertical bars'|', and asterisks'*'.scontains an even number of vertical bars'|'.
Solutions
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class Solution { public int countAsterisks(String s) { int ans = 0; for (int i = 0, ok = 1; i < s.length(); ++i) { char c = s.charAt(i); if (c == '*') { ans += ok; } else if (c == '|') { ok ^= 1; } } return ans; } } -
class Solution { public: int countAsterisks(string s) { int ans = 0, ok = 1; for (char& c : s) { if (c == '*') { ans += ok; } else if (c == '|') { ok ^= 1; } } return ans; } }; -
class Solution: def countAsterisks(self, s: str) -> int: ans, ok = 0, 1 for c in s: if c == "*": ans += ok elif c == "|": ok ^= 1 return ans -
func countAsterisks(s string) (ans int) { ok := 1 for _, c := range s { if c == '*' { ans += ok } else if c == '|' { ok ^= 1 } } return } -
function countAsterisks(s: string): number { let ans = 0; let ok = 1; for (const c of s) { if (c === '*') { ans += ok; } else if (c === '|') { ok ^= 1; } } return ans; } -
public class Solution { public int CountAsterisks(string s) { int ans = 0, ok = 1; foreach (char c in s) { if (c == '*') { ans += ok; } else if (c == '|') { ok ^= 1; } } return ans; } } -
impl Solution { pub fn count_asterisks(s: String) -> i32 { let mut ans = 0; let mut ok = 1; for &c in s.as_bytes() { if c == b'*' { ans += ok; } else if c == b'|' { ok ^= 1; } } ans } }