1077. Kuchiguse (20)-字符串处理

题目链接：https://www.patest.cn/contests/pat-a-practise/1077
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<cstdio>#include<cstring>char s[100][260];int main(){    int n;    int minlen=256;    scanf("%d",&n);    getchar();     for(int i=0;i<n;i++){        gets(s[i]);        int len=strlen(s[i]);        if(len<minlen) minlen=len;        for(int j=0;j<len/2;j++){//倒转字符串             char t=s[i][j];            s[i][j]=s[i][len-1-j];            s[i][len-1-j]=t;        }    }    int ans=0;    for(int i=0;i<minlen;i++){        char c=s[0][i];        bool same=true;        for(int j=1;j<n;j++){//检验各行字符串第i个是否相等             if(c!=s[j][i]){                same=false;                break;            }        }        if(same) ans++;        else break;    }    if(ans){        for(int i=ans-1;i>=0;i--){            printf("%c",s[0][i]);        }    }else{        printf("nai");    }    return 0; }