结构体的使用

解题思路:

注意事项:

参考代码:

#include <stdio.h>

// 定义日期结构体

struct Date {

int year;

int month;

int day;

};

// 判断是否为闰年

int isLeapYear(int year) {

return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);

}

// 计算给定日期在本年中是第几天

int dayOfYear(struct Date date) {

int daysInMonth[] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

int totalDays = date.day;

for (int i = 1; i < date.month; ++i) {

totalDays += daysInMonth[i];

}

// 处理闰年的2月

if (date.month > 2 && isLeapYear(date.year)) {

totalDays += 1;

}

return totalDays;

}

int main() {

struct Date date;

scanf("%d%d%d", &date.year, &date.month, &date.day);

int day = dayOfYear(date);

printf("%d", day);

return 0;

}