ZOJ-2554

#include<stdio.h>int main(){    int n;    int inputx[200000];    int inputy[200000];    while (scanf("%d", &n), n)    {        int i;        for (i = 0; i < n; i++)            scanf("%d %d", &inputx[i], &inputy[i]);        int x = inputx[n / 2], y = inputy[n / 2];        int s = 0, o = 0;        int xx, yy;        for (i = 0; i < n; i++)        {            xx = inputx[i], yy = inputy[i];            if ((xx > x && yy > y) || (xx < x && yy < y))                s++;            if ((xx < x && yy > y) || (xx > x && yy < y))                o++;        }        printf("%d %d\n", s, o);    }    return 0;}