The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be considered as a reflection of the speaker's personality. Such a preference is called "Kuchiguse" and is often exaggerated artistically in Anime and Manga. For example, the artificial sentence ending particle "nyan~" is often used as a stereotype for characters with a cat-like personality: Itai nyan~ (It hurts, nyan~) Ninjin wa iyada nyan~ (I hate carrots, nyan~)
Now given a few lines spoken by the same character, can you find her Kuchiguse?
Input Specification:
Each input file contains one test case. For each case, the first line is an integer N (2<=N<=100). Following are N file lines of 0~256 (inclusive) characters in length, each representing a character's spoken line. The spoken lines are case sensitive.
Output Specification:
For each test case, print in one line the kuchiguse of the character, i.e., the longest common suffix of all N lines. If there is no such suffix, write "nai".
Sample Input 1:3 Itai nyan~ Ninjin wa iyadanyan~ uhhh nyan~Sample Output 1:
nyan~Sample Input 2:
3 Itai! Ninjinnwaiyada T_T T_TSample Output 2:
nai
#include <iostream>
#include <algorithm>
using namespace std;
int main() {
int n;
scanf("%d\n", &n);
string ans;
for(int i = 0; i < n; i++) {
string s;
getline(cin, s);
int lens = (int)s.length();
reverse(s.begin(), s.end());
if(i == 0) {
ans = s;
continue;
} else {
int lenans = (int)ans.length();
int minlen = min(lens, lenans);
for(int j = 0; j < minlen; j++) {
if(ans[j] != s[j]) {
ans = ans.substr(0, j);
break;
}
}
}
}
reverse(ans.begin(), ans.end());
if (ans.length() == 0) ans = "nai";
cout << ans;
return 0;
}
