hdu2133: 题意（解法）：已知0年1月1日是周6，输入一个日期，问星期几code：

#include
     
      #include
      
       #include
       
        #include
        
         int tianshu1[]={
   31,28,31,30,31,30,31,31,30,31,30,31};int tianshu2[]={
   31,29,31,30,31,30,31,31,30,31,30,31};char tab[7][10]={
   "Saturday","Sunday","Monday","Tuesday","Wednesday","Thursday","Friday"};bool runnian(int n){    if((n%4==0&&n%100!=0)||n%400==0)        return true;    else        return false;}int main(){    int y,m,d;    while(scanf("%d%d%d",&y,&m,&d)!=EOF)    {        int ans=0;        if(m==0||d==0||(!runnian(y)&&d>tianshu1[m-1])||(runnian(y)&&d>tianshu2[m-1]))        {            printf("illegal\n");            continue;        }        for(int i=0;i