题目
# 思路
水题
代码
#include <iostream>
#include <string>
#include<algorithm>
using namespace std;
int main()
{
int n;
cin >> n;
getchar();
string str, tmp;
getline(cin, str);
for (int i = 2; i <= n; ++i) {
getline(cin, tmp);
int strptr = str.length() - 1;
int tmpptr = tmp.length() - 1;
while (strptr >= 0 && tmpptr >= 0) {
if (str[strptr] != tmp[tmpptr])
break;
strptr--;
tmpptr--;
}
if (strptr == str.length() - 1) {
cout << "nai";
return 0;
}
str = str.substr(strptr+1);
}
cout << str;
return 0;
}