我为USACO任务制定了一个程序,现在我无法弄清楚为什么我会得到错误的答案,我一直在想为什么很长一段时间仍然没有弄明白。可能有什么不对?
任务是计算第13次星期六,星期日,星期一,星期二,......,星期五的次数。从测试时间到1900年,最后一年在txt文件中给出。
而不是这个答案:36 33 34 33 35 35 34
我得到:34 33 33 33 36 36 35
非常感谢你的帮助,我真的非常感谢你的时间和帮助:)
#include<iostream>
#include<fstream>
using namespace std;
int weekDayCount(int days, int weekDays[], int & currentWeekDay)
{
for(int day = 1; day <= days; day++)
{
if(day == 13)
{
weekDays[currentWeekDay]++;
}
currentWeekDay++;
if(currentWeekDay == 7) currentWeekDay = 0;
}
}
int main()
{
int currentWeekDay = 0;
int years;
ifstream in("friday.in");
in >> years;
in.close();
int weekDays[7] = {0};
for(int y = 1900; y <= (1900 + years) - 1; y++) // Years
{
cout << y << endl;
for(int m = 1; m <= 12; m++) // Months
{
if(m == 11 || m == 2 || m == 10 || m == 8) // 30 days
{
weekDayCount(30, weekDays, currentWeekDay);
}
else if(m == 5) // February
{
if(y % 100 != 0 && y % 4 == 0) // If a leap year - 29 days
{
weekDayCount(29, weekDays, currentWeekDay);
}
else if(y % 100 == 0 && y % 400 == 0) // If a century leap year
{
cout << "Leap century: " << y << endl;
weekDayCount(29, weekDays, currentWeekDay);
}
else // 28 days
{
weekDayCount(28, weekDays, currentWeekDay);
}
}
else // Else 31 days
{
weekDayCount(31, weekDays, currentWeekDay);
}
}
}
cout << "Result" << endl;
cout << weekDays[5] << " " << weekDays[6] << " " << weekDays[0] << " " << weekDays[1] << " " << weekDays[2] << " " << weekDays[3] << " " << weekDays[4] << endl;
}
答案 0 :(得分:0)
您的月份比较不正确。
2月是第2个月,而不是第5个月 作为第二个月,它没有30天(至少自从我活着以来)。
您可能想要交换这些常量。