PAT1002

https://pintia.cn/problem-sets/994805342720868352/problems/994805526272000000

这个题竟然无限WA，菜的真实

坑点：和为0的数不输出，题目中说的很隐晦，很容易忽略，在“with the same format as the input.”中说了，输出的格式和输入相同，则输出时，不能输出为0的数

#include<cstdio>
#include<cstring>
#include<stdlib.h>

double num[1005];
int num_1[1005];
int main()
{
    memset(num, 0, sizeof(num)/8);
    memset(num, 0, sizeof(num_1)/4);
    int N = 2;
    while(N--)
    {
        int n;
        scanf("%d ",&n);
        for(int i = 0;i < n ; i++)
        {
            int x;
            double y;
            scanf("%d %lf",&x,&y);
            num[x] += y;
        }
    }
    int j = 0;
    for(int i = 1005;i >= 0;i--)
    {
        if(num[i] != 0)
            j++;

    }
    printf("%d",j);
    for(int i = 1005;i >= 0;i--)
    {
        if(num[i] != 0)
            printf(" %d %.1lf",i,num[i]);
    }


    return 0;
}