题解 | #鸡兔同笼#

#include <stdio.h>

int main() {
    int a,t;
    int max,min;
    while(scanf("%d",&a)!=EOF){
        t=a;
        max=0;min=0;
        if(a%2!=0){
            printf("0 0\n");
            continue;
        }
        min+=t/4;
        t=t%4;
        min+=t/2;
        printf("%d %d\n",min,a/2);
        
    }

}