C语言代码：将2020年计数转换为日期和星期

#include <stdio.h>

struct Date { int year; int month; int day; int weekday; };

void calculateDate(int count, struct Date* date) { date->year = 2020; date->weekday = (count + 2) % 7; // 星期的计算公式 int daysInMonth[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

// 计算月份和日期
int i;
for (i = 0; i < 12; i++) {
    if (count <= daysInMonth[i]) {
        date->month = i + 1;
        date->day = count;
        break;
    }
    count -= daysInMonth[i];
}

}

int main() { int count; struct Date date;

printf('请输入一个1~366之间的数: ');
scanf('%d', &count);

calculateDate(count, &date);

printf('转换结果为：%d年%d月%d日 星期%d\n', date.year, date.month, date.day, date.weekday);

return 0;

}