View Code of Problem 87

#include<cstdlib>
#include<cmath>
#include<cstdio>
#include<algorithm>
#include<iostream>
#include<cstring>
using namespace std;
int main(){
    int a,i,j;
	scanf("%d",&a);
	int flag=0;
	for( i=a/4;i>=0;i--)
	{
		for( j=0;j<=a/2;j++)
		{
			if(i*4+2*j==a)
			{
					printf("%d ",i+j);
					flag=1;
					break;
			}
		}
		if(flag==1) break;
	}
     if(flag==0) printf("0 0");
	 int cnt=0;
	for( i=a/2;i>=0;i--)
	{
		for( j=0;j<=a/4;j++)
		{
			if(i*2+4*j==a)
			{
					printf("%d\n",i+j);
					cnt=1;
			 	 break;
			}
		}
		if(cnt==1) break;
	}
    if(cnt==0) printf("0 0");
	return 0;
}