View Code of Problem 22

#include <stdio.h> 
#include <string.h>
int main()
{
	char a[1000],b[1000],c[1000];
	int i,j,k;
	char temp;
	while(scanf("%s\n%s",a,b)!=EOF)
	{
		memset(c,0,sizeof(c));
		k=0;
		for(i=0;i<strlen(a);i++)
		{
			for(j=0;j<strlen(b);j++)
			{
				if(a[i]==b[j])
				{
					c[k++]=a[i];
					b[j]='*';
					break;
				}
			}
		}
		for(i=0;i<k;i++)
		{
			for(j=i+1;j<k;j++)
			{
				if(c[j]<c[i])
				{
					temp=c[i];
					c[i]=c[j];
					c[j]=temp;
				}
			}
		}
		puts(c);
	}
	return 0;
}

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