View Code of Problem 22

#include <stdio.h> 
#include <string.h>
#include <algorithm>
using namespace std;
int main()
{
	char a[1000],b[1000],c[1000];
	int lena,lenb,i,j;
	int k;
	while(scanf("%s\n%s",a,b)!=EOF)
	{
		memset(c,0,sizeof(c));
		lena=strlen(a);
		lenb=strlen(b);
		k=0;
		for(i=0;i<lena;i++)
		{
			for(j=0;j<lenb;j++)
			{
				if(a[i]==b[j])
				{
					c[k++]=a[i];
					break;
				}
			}
		}
		sort(c,c+strlen(c));
		for(k=0;k<strlen(c);k++)
		{
			printf("%s\n",c);
		}	
	}
	return 0;
}
/*
Main.c:3:21: fatal error: algorithm: No such file or directory
 #include <algorithm>
                     ^
compilation terminated.
*/