题解 | #四季#

#include <stdio.h>
int CheckYear(int yearInput);
int CheckMonth(int monthInput);
int main() {
    int input, year, month;
    scanf("%d", &input);
    year = input / 100; // input除以100得到前4位数字，赋值给year
    month = input % 100; // intpu取余100得到后两位数字，赋值给month

    // 输入的年份应该是4位数，输入的月份应该为1~12
    if (CheckYear(year) && CheckMonth(month)) {
        switch (month) {
            case 3:
            case 4:
            case 5:
                printf("spring\n");
                break;
            case 6:
            case 7:
            case 8:
                printf("summer\n");
                break;
            case 9:
            case 10:
            case 11:
                printf("autumn\n");
                break;
            case 12:
            case 1:
            case 2:
                printf("winter\n");
                break;
        }
    }
    else{
        printf("Invalid value!!!\n");
    }
    return 0;
}

// @brief 判断输入年份是否为4位数
// @param 输入需要判断的年份
int CheckYear(int yearInput) {
    int flagYear = 0;
    if (1000 <= yearInput && yearInput <= 9999) {
        flagYear = 1;
        return flagYear;
    }
    return flagYear;
}

// @brief 判断输入月份是否在1~12之间
// @param 输入需要判断的月份
int CheckMonth(int monthInput) {
    int flagMonth = 0;
    if (1 <= monthInput && monthInput <= 12) {
        flagMonth = 1;
        return flagMonth;
    }
    return flagMonth;
}