#include<stdio.h>
void MonthDay(int year,int yearDay,int *pMonth,int *pDay);
int main()
{
    int year,yearDay,*pMonth,*pDay;
    scanf("%d%d",&year,&yearDay);
    MonthDay(year,yearDay,pMonth,pDay);
    printf("%d-%d-%d",year,*pMonth,*pDay);
}
void MonthDay(int year,int yearDay,int *pMonth,int *pDay)
{
    int i,leap;
    int tab[2][13]={{0,31,28,31,30,31,30,31,31,30,31,30,31},
                    {0,31,29,31,30,31,30,31,31,30,31,30,31}};
    leap=(year%4==0&&year%100!=0)||year%400==0;
    for(i=1;yearDay>0;i++){
        *pDay=yearDay;
        yearDay=yearDay-tab[leap][i];
        *pMonth=i;
    }
}

请问这个为什么编译没问题但运行时出错啊？还请大神指教

只是一个输入年份和这一年的第几天，算出具体日期的题目，谢谢你的关心，我已经自己解决问题了