#include <stdio.h>
int main(void) {
// your code goes here
int a,b;
printf("あなたの生年月日を入力してください。\n"); printf("あなたの入力した日付は%d月%d日です。\n",a
,b
); switch(a)
{
case 1:
if((1<=b)&&(b<=19))
else if((20<=b)&&(b<=31))
break;
case 2:
if((1<=b)&&(b<=18))
else if((19<=b)&&(b<=29))
break;
case 3:
if((1<=b)&&(b<=20))
else if((21<=b)&&(b<=31))
break;
case 4:
if((1<=b)&&(b<=19))
else if((20<=b)&&(b<=30))
break;
case 5:
if((1<=b)&&(b<=20))
else if((21<=b)&&(b<=31))
break;
case 6:
if((1<=b)&&(b<=21))
else if((22<=b)&&(b<=30))
break;
case 7:
if((1<=b)&&(b<=22))
else if((23<=b)&&(b<=31))
break;
case 8:
if((1<=b)&&(b<=22))
else if((23<=b)&&(b<=31))
break;
case 9:
if((1<=b)&&(b<=22))
else if((23<=b)&&(b<=30))
break;
case 10:
if((1<=b)&&(b<=23))
else if((24<=b)&&(b<=31))
break;
case 11:
if((1<=b)&&(b<=22))
else if((23<=b)&&(b<=30))
break;
case 12:
if((1<=b)&&(b<=21))
else if((22<=b)&&(b<=31))
break;
}
return 0;
}
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