题解 | #出生日期输入输出#

#include <stdio.h>

int main() {
    int Id, year ;
    char month, date;
    scanf("%d", &Id);
  //利用 % 和 / 将数据分配给对应的变量
    year = Id / 10000 % 10000;
    month = Id / 100 % 100;
    date = Id % 100;
	//将输出分为四种情况，对应的给月和日补零

    if ((1990 <= year && year <= 2015) && (1 <= month && month <= 12) &&
            (1 <= date && date <= 30)) {
        if (month < 10 && date >= 10)
            printf("year=%d\nmonth=0%d\ndate=%d\n", year, month, date);
        else if (month >= 10 && date < 10)
            printf("year=%d\nmonth=%d\ndate=0%d\n", year, month, date);
        else if (month < 10 && date < 10)
            printf("year=%d\nmonth=0%d\ndate=0%d\n", year, month, date);
        else
            printf("year=%d\nmonth=%d\ndate=%d\n", year, month, date);
    } else {
        printf("EOF!\n");
    }
    return 0;
}