3463 - 判断天数
输入一个年份和月份，打印出该月有多少天（考虑闰年），用switch语句编程
题目输入
输入一个年份和月份，以空格隔开
题目输出
输出天数。
输入/输出样例
题目输入
2012 2 2013 2
题目输出
29 28
C语言解答
#include <stdio.h> #include <math.h> #include <stdlib.h> #include <time.h> int main() { // freopen("in","r",stdin); // freopen("out","w",stdout); int year, month; while(scanf("%d%d", &year, &month)!=EOF) { switch (month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: printf("31\n"); break; case 2: if((year % 4== 0 && year % 100 != 0)||(year % 400 == 0)) { printf("29\n"); } else { printf("28\n"); } break; case 4: case 6: case 9: case 11: printf("30\n"); break; } } return 0; }
C++解答
#include<stdio.h> int main() { int year,month; while(scanf("%d %d",&year,&month)!=EOF) { switch(month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12:printf("31\n");break; case 4: case 6: case 9: case 11:printf("30\n");break; case 2:if((year%4==0&&year%100!=0)||(year%400==0)) { printf("29\n"); break; } else { printf("28\n"); break; } } } return 0; }