Count Asterisks Problem & Solution

See the count asterisks problem on LeetCode.

C++ Solution

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#pragma GCC ivdep

static const int _=[](){ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);return 0;}();

class Solution {
public:
  int countAsterisks(string s) {
    int pipes = 0, asterisks = 0, total = 0;
    for (auto c : s) {
      if (c == '|') {
        if (++pipes % 2 == 1) {
          total += asterisks;
        }

        asterisks = 0;
      } else if (c == '*') {
        ++asterisks;
      }
    }

    return total + asterisks;
  }
};

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