PAT 1077 Kuchiguse

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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). 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;
typedef long long ll;

int main(){

    int t;scanf("%d",&t);
    vector<string> vec;
    int minlenn = INT_MAX;
    string temp;getline(cin,temp);
    while(t--){
        string s;getline(cin,s);
        string temp="";
        for(int i=0;i < s.size();i++){
            temp = s[i]+temp;
        }
        vec.push_back(temp);
        int len = s.size();
        minlenn = min(minlenn,len);  //直接把s.size()放进去不对???
    }
//    cout << vec.size();


    string res = "";
    for(int i=0;i < minlenn;i++){
        char sx = vec[0][i];
        bool flag = 1;
        for(int j=1;j < vec.size();j++){
            if(vec[j][i] != sx){
                flag = 0;
                break;
            }
        }
        if(flag){
            res = sx+res;
        }
        else break;
    }
    if(res == "")cout << "nai";
    else cout << res;




    return 0;
}

——遇到情况多样的题目,可以大胆的猜测,只要先过样例就行。

在getline前如果有cin 会读取结尾的\0

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