1077 Kuchiguse （20 分）-CFANZ编程社区

The Japanese language is notorious（臭名昭著） 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（夸张的） artistically in Anime and Manga. For example, the artificial sentence ending particle "nyan~" is often used as a stereotype（模式化观念） 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（后缀）, 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

参考代码：

//Kuchiguse
#include<cstdio>
#include<cstring>
char str[100][260];
int  minlen = 256;
int num = 0;

int main(int argc, char const *argv[])
{
  int N;
  scanf("%d", &N);
  getchar();

  for (int i = 0; i < N; ++i)
  {
    fgets(str[i], 261, stdin);
    int len = strlen(str[i]) - 1;
    if(len < minlen) minlen = len;
  for (int j = 0; j < len / 2; ++j)
  {
    char temp = str[i][j];
    str[i][j] = str[i][len - j - 1];
    str[i][len - j - 1] = temp;
  }
  }

  for (int i = 0; i < minlen; ++i)
  {
    char temp = str[0][i];
    bool same = true;
    for (int j = 1; j < N; ++j)
    {
      if(temp != str[j][i]){
        same = false;
        break;
      }
    }
    if(same) num++;
    else break;
  }

  if(num == 0){
    printf("nai");
  }else{
    for (int i = num - 1; i >= 0; --i)
    {
      printf("%c", str[0][i]);
    }
  }
  printf("\n");
  return 0;
}

参考代码2:

#include<cstdio>
#include<cstring>
char str[100][260];
int  minlen = 256;
int num = 0;
int k ;
void reverse(char str[][260]){
  int len = strlen(str[k]) - 1;
    if(len < minlen) minlen = len;
    for (int j = 0; j < len / 2; ++j)
    {
      char temp = str[k][j];
       str[k][j] = str[k][len - j - 1];
       str[k][len - j - 1] = temp;  
    }
}

int main(int argc, char const *argv[])
{
  int N;
  scanf("%d", &N);
  getchar();

  for (k = 0; k < N; ++k)
  {
    fgets(str[k], 261, stdin);
     reverse(str);
  //  int len = strlen(str[i]) - 1;
  //  if(len < minlen) minlen = len;
  // for (int j = 0; j < len / 2; ++j)
  // {
  //  char temp = str[i][j];
  //  str[i][j] = str[i][len - j - 1];
  //  str[i][len - j - 1] = temp;
  // }
  }

  for (int i = 0; i < minlen; ++i)
  {
    char temp = str[0][i];
    bool same = true;
    for (int j = 1; j < N; ++j)
    {
      if(temp != str[j][i]){
        same = false;
        break;
      }
    }
    if(same) num++;
    else break;
  }

  if(num == 0){
    printf("nai");
  }else{
    for (int i = num - 1; i >= 0; --i)
    {
      printf("%c", str[0][i]);
    }
  }
  printf("\n");
  return 0;
}

参考代码3:

#include<cstdio>
#include<cstring>
char str[100][260];
int  minlen = 256;
int num = 0;
void reverse(char str[]){
  int len = strlen(str) - 1;
    if(len < minlen) minlen = len;
    for (int j = 0; j < len / 2; ++j)
    {
      char temp = str[j];
       str[j] = str[len - j - 1];
       str[len - j - 1] = temp;  
    }
}

int main(int argc, char const *argv[])
{
  int N;
  scanf("%d", &N);
  getchar();

  for (int i = 0; i < N; ++i)
  {
    fgets(str[i], 261, stdin);
     reverse(str[i]);
  }

  for (int i = 0; i < minlen; ++i)
  {
    char temp = str[0][i];
    bool same = true;
    for (int j = 1; j < N; ++j)
    {
      if(temp != str[j][i]){
        same = false;
        break;
      }
    }
    if(same) num++;
    else break;
  }

  if(num == 0){
    printf("nai");
  }else{
    for (int i = num - 1; i >= 0; --i)
    {
      printf("%c", str[0][i]);
    }
  }
  printf("\n");
  return 0;
}