在devc++用c语言根据日期求星期(年>1900),先判断日期是否合法,不合法需...答:int main(){ int y,m,d,w,i,mon[13]= {0,31,28,31,30,31,30,31,31,30,31,30,31};char week[7][4]= {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};scanf("%d%d%d",&y,&m,&d);mon[2]+=(y%4==0&&y%100||y%400==0);if(y<1901||m<1||m>12||d<1|...
C语言的一道题 知道1900年1月1日是星期一,设计一个程序,输入年月日...答:int main(void){ int a,b,year,month,day,count=0;int mon[12]={0,31,28,31,30,31,30,31,31,30,31,30};printf("Please input year month day like this xxxx,xx,xx\n");scanf("%d,%d,%d",&year,&month,&day);for(a=1900;a<year;a++)if(a%100!=0&&a%4==0||a%400=...