C语言程序设计:给出年、月、日,计算该日是该年的第几天。答:include "stdio.h"int main () { int year;int month;int day;scanf("%d %d %d", &year, &month, &day);if(year < 1 || (month < 1 || month > 12) || (day < 1 || day > 31))return -1;int daynum[12] = { 31, 28, 31,30 ,31, 30, 31, 31, 30, 31, 30,...
C语言:输入年份和天数,输出对应的年、月、日答:int days[12]={31,28,31,30,31,30,31,31,30,31,30,31};//这个数组保存每月的天数 if(year%4==0&&year%100!=0||year%400==0)//判断是否为闰年 days[1]=29;//闰年的二月有29天 pMonth=1;//从一月开始看 while(yearDay>days[*pMonth-1])//如果哪一天超出这个月 { yearDay-=...
c语言编写程序从键盘任意输入年份和月份,计算出这一年...答:主要判断出该年是否为闰年即可,C语言代码如下:include <stdio.h> int main(){ int y, m;scanf("%d %d", &y, &m);int month[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};if ((y % 4 == 0 && y % 100 != 0) || (y % 400 == 0)) //...