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8892.cpp
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67 lines (62 loc) · 1.21 KB
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// 8892. 팰린드롬
// 2021.09.09
// 브루트 포스
#include<iostream>
#include<vector>
#include<string>
using namespace std;
bool CheckPalindrome(string& tmp)
{
for (int i = 0; i < tmp.size() / 2; i++)
{
if (tmp[i] != tmp[tmp.size() - 1 - i])
{
return false;
}
}
return true;
}
int main()
{
int t;
cin >> t;
while (t-- > 0)
{
int n;
cin >> n;
vector<string> v(n);
for (int i = 0; i < n; i++)
{
cin >> v[i];
}
string ans = "0";
bool flag = true;
for (int i = 0; i < n; i++)
{
if (!flag)
{
break;
}
for (int j = 0; j < n; j++)
{
if (!flag)
{
break;
}
if (i == j)
{
continue;
}
string tmp = v[i] + v[j];
if (CheckPalindrome(tmp))
{
ans = tmp;
flag = false;
break;
}
}
}
cout << ans << endl;
}
return 0;
}