C语言程序,输入年月日算出当天星期几?答:include <stdio.h> int getWeek(int year, int month, int day){ int aWeek[12] = {0,3,2,5,0,3,5,1,4,6,2,4};int week = 0;int temp = 0;if(year < 1 || month < 1 || month > 12 || day < 1 || day > 31){ return 0;} year -= month < 3;temp = (...