1002

题目描述

Little A is one member of ACM team. He had just won the gold in World Final. To celebrate, he decided to invite all to have one meal. As bowl, knife and other tableware is not enough in the kitchen, Little A goes to take backup tableware in warehouse. There are many boxes in warehouse, one box contains only one thing, and each box is marked by the name of things inside it. For example, if "basketball" is written on the box, which means the box contains only basketball. With these marks, Little A wants to find out the tableware easily. So, the problem for you is to help him, find out all the tableware from all boxes in the warehouse.

输入

There are many test cases. Each case contains one line, and one integer N at the first, N indicates that there are N boxes in the warehouse. Then N strings follow, each string is one name written on the box.

输出

For each test of the input, output all the name of tableware.

样例输入

3 basketball fork chopsticks2 bowl letter

样例输出

fork chopsticksbowl

提示

The tableware only contains: bowl, knife, fork and chopsticks.

来源

辽宁省赛2010

这道题主要是格式问题，如何解决输出数据中间有空格，最后一个数据没有空格的问题，下面的程序采用的方法是先输出第一个，然后在以后的输出数据前加空格。

#include<stdio.h>  #include<math.h>  #include<string.h>   char s[105];  int main()  {      int n,i;      while(scanf("%d",&n)!=EOF)      {           int flag=0;          for(i=1; i<=n; i++)          {              scanf("%s",s);              if(flag==0)              {                  if(strcmp(s,"bowl")==0)                      printf("%s",s),flag=1;                  else if(strcmp(s,"knife")==0)                      printf("%s",s),flag=1;                  else if(strcmp(s,"fork")==0)                      printf("%s",s),flag=1;                  else if(strcmp(s,"chopsticks")==0)                      printf("%s",s),flag=1;              }              else              {                  if(strcmp(s,"bowl")==0)                      printf(" %s",s);                  else if(strcmp(s,"knife")==0)                      printf(" %s",s);                  else if(strcmp(s,"fork")==0)                      printf(" %s",s);                  else if(strcmp(s,"chopsticks")==0)                      printf(" %s",s);              }          }          printf("\n");      }      return 0;  }