View Code of Problem 612

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>

int cmp(const void *a,const void *b){
    return *(int*)a-*(int*)b;
}

int main()
{
	int num[6];
	while(scanf("%d",&num[0])!=EOF){
	    for(int i=1;i<6;i++){
	        scanf("%d",&num[i]);
	    }
	    qsort(num,6,sizeof(int),cmp);
	    int sum=0;
	    for(int i=1;i<5;i++){
	        sum+=num[i];
	    }
	    printf("%g\n",1.0*sum/4);
	}
	return 0;
}