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similarStrings.cpp
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similarStrings.cpp
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#include <iostream>
#include <string>
using namespace std;
bool recursion(string a, string b) {
if (a.size() % 2 == 1) return a == b;
string suba1, suba2, subb1, subb2;
suba1 = a.substr(0, a.size() / 2);
suba2 = a.substr(a.size() / 2, a.size() / 2);
subb1 = b.substr(0, b.size() / 2);
subb2 = b.substr(b.size() / 2, b.size() / 2);
bool flag = (recursion(suba1, subb1) && recursion(suba2, subb2));
flag |= (recursion(suba1, subb2) && recursion(suba2, subb1));
return flag;
}
bool similarStrings(string a, string b)
{
if (a.size() != b.size()) return false;
if (a == b) return true;
if (a.size() % 2 == 1) return false;
return recursion(a, b);
}
int main() {
cout << similarStrings("aabb", "abab");
return 0;
}