View Code of Problem 22

#include "stdio.h"
#include "math.h"
#include "string.h"

void main()
{
	int i,j,k;
	char a[1001],b[1001];
	for(;scanf("%s%s",a,b)!=EOF;)
	{
		int c[1001]={0};
		for(k=0,i=0;a[i]!='\0';i++)
		{
			for(j=0;b[j]!='\0';j++)
			{
				if(a[i]==b[j])
				{
					c[a[i]-'0']++;
				}
			}
		}
		for(i='a'-'0';i<='z'-'0';i++)
		{
			if(c[i]!=0)
				printf("%c",i+'0');
		}
		printf("\n");
	}
} 

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