CF 432B :Football Kit

hash做法:

 

#include<stdio.h>
#include<string.h>
const int Max = 100010;
int home[Max],away[Max],hash[Max];
int main()
{
    int n,sum,total;
    int i,j;
    while(scanf("%d",&n)!=EOF)
    {
        sum = 0;
        total = 2*(n-1);
        for(i=0;i<n;i++)
            scanf("%d %d",&home[i],&away[i]);
        memset(hash,0,sizeof(hash));
        for(i=0;i<n;i++)
            hash[home[i]]++;//重复出现的主场number
        for(i=0;i<n;i++)
            printf("%d %d\n",n-1+hash[away[i]],n-1-hash[away[i]]);

    }
    return 0;
}