1077 Kuchiguse (20分)

1077 Kuchiguse (20分)

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_T

Sample Output 2:

nai

#include<bits/stdc++.h>
using namespace std;
string s[1005];
int main()
{
	int n; cin >> n;
	getchar();
	for (int i = 0; i < n; i++)
	{
		getline(cin, s[i]);
		if (s[i][s[i].length() - 1] == ' ') {
			reverse(s[i].begin(), s[i].end());
			s[i].insert(0, " ");
		}
		reverse(s[i].begin(), s[i].end());
	}
	string S = s[0];
	 int ans = 0; int length = 9999;int c ;
for (int i = 0; i < n; i++)
{
    c=-1;
	for (int j = 0; j < s[i].size(); j++)
	{
		
		if (s[i][j] == S[j])
		{	
			c = j;
		}
		else
		{	
			
			break;
		}
	}
	ans = c;
	if (ans < length)
		length = ans;
	 
		
}
if (c==-1)
cout << "nai";
else
{
	for (int i = length; i >= 0; i--)
		cout << S[i];
}
}