nyoj_t218(Dinner)

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 chopsticks
2 bowl letter

样例输出

fork chopsticks
bowl

提示

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

#include <cstring>
#include <string>
using namespace std;
int main()
{
	int n,i;
	char a[1010][20];
	//char *s1 = "bowl";
	while(scanf("%d",&n)!=EOF)
	{
		memset(a,0,sizeof(a));
		for (i=0;i<n;i++)
			scanf("%s",a[i]);
		for (i=0;i<n;i++)
		{
			if(strcmp(a[i],"bowl") == 0)
				printf("bowl ");
			if(strcmp(a[i],"knife") == 0)
				printf("knife ");
			if(strcmp(a[i],"fork") == 0)
				printf("fork ");
			if(strcmp(a[i],"chopsticks") == 0)
				printf("chopsticks ");
		}
		printf("\n");
	}
	return 0;
}

给出这样的提示错误，不能明白这是什么道理，在这里，看似没有使用指针，实际上是在无数的指针在使用着，指针的使用需要严格按照格式，不得出现任何的错误。

运行时出错：
常见出错的原因可能有以下几种：
1、数组开得太小了，导致访问到了不该访问的内存区域
2、发生除零错误
3、大数组定义在函数内,导致程序栈区耗尽
4、指针用错了，导致访问到不该访问的内存区域
5、还有可能是程序抛出了未接收的异常

 
#include <stdio.h>
#include <iostream>
#include <cstring>
#include <string>
using namespace std;
int main()
{
	int n,i;
	char a[1010][20];
	//char *s1 = "bowl";
	while(scanf("%d",&n)!=EOF)
	{
		memset(a,0,sizeof(a));
		while (n--)
		{
			scanf("%s",a[i]);
			if(strcmp(a[i],"bowl") == 0)
				printf("bowl ");
			if(strcmp(a[i],"knife") == 0)
				printf("knife ");
			if(strcmp(a[i],"fork") == 0)
				printf("fork ");
			if(strcmp(a[i],"chopsticks") == 0)
				printf("chopsticks ");
		}
		printf("\n");
	}
	return 0;
}