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#include "leetcode.h"
class Solution {
string vowels = "aeiouAEIOU";
public:
bool halvesAreAlike(string s) {
int mid = s.size() / 2, ans = 0;
for (int i = 0, j = mid; i < mid; i++, j++) {
if (~vowels.find(s[i]))
ans++;
if (~vowels.find(s[j]))
ans--;
}
return ans == 0;
}
};
int main() {
Solution obj;
if (obj.halvesAreAlike("book"))
cout << "true";
else
cout << "false";
}
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