int mon[4] ={31+28+31, 30+31+30, 31+31+30, 31+30+31}
void main()
{
int i, y
printf("年份:")
scanf("%d", &y)
if ((((y % 4) == 0) &&((y % 100) != 0)) || ((y % 400) == 0))
{
mon[0]++
}
for (i = 0i <4i++)
{
printf("第%d季度:%d\n", i + 1, mon[i])
}
}
#include<stdio.h>int main()
{int m,s
scanf("%d",&m)
switch((m-1)/3)
{case 0:printf("I\n")break
case 1:printf("II\n")break
case 2:printf("III\n")break
case 3:printf("IV\n")break
default: printf("Error\n")
}
return 0
}