时差问题

最新推荐文章于 2021-05-09 21:38:05 发布

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西工大研究生入学机试题专栏收录该内容

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该问题关注于处理时差，目标是将北京时间转换为与北京相差17小时的地区的时间。输入为四年月日时分的格式，输出同样需要保持这种格式，确保所有时间单位都是两位数。

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Problem4：时差问题。一个地方和北京相差17个小时（比北京慢17h），输入北京时间，输出当地时间;输入格式：年月日时分，输出格式一样。此题注意输出格式控制（后四项数字位数为两位）

#include <iostream>
#include <iomanip>

using namespace std;

bool isLeap(int year);

int main()
{
    int yearB = 0;
    int monB = 0;
    int dayB = 0;
    int hourB = 0;
    int minB = 0;
    int yearJ = 0;
    int monJ = 0;
    int dayJ = 0;
    int hourJ = 0;
    int minJ = 0;

    int n = 0;

    while (cin >> n)
    {
        for (int i = 0; i < n; i++)
        {
            cin >> yearB >> monB >> dayB >> hourB >> minB;

            minJ = minB;

            if (hourB >= 16)
            {
                yearJ = yearB;
                monJ = monB;
                dayJ = dayB;
                hourJ = hourB - 16;
            }
            else
            {
                if (dayB == 1)
                {
                    if (monB == 1 || monB == 2 || monB == 4 || monB == 6 || monB == 8 || monB == 9 || monB == 11)
                    {
                        if (monB == 1)
                        {
                            yearJ = yearB - 1;
                            monJ = 12;
                            dayJ = 31;
                            hourJ = hourB + 24 - 16;
                        }
                        else
                        {
                            yearJ = yearB;
                            monJ = monB - 1;
                            dayJ = 31;
                            hourJ = hourB + 24 - 16;
                        }

                        //if (monJ == 0)
                            //monJ = 12;
                    }
                    else if (monB == 5 || monB == 7 || monB == 10 || monB == 12)
                    {
                        yearJ = yearB;
                        monJ = monB - 1;
                        dayJ = 30;
                        hourJ = hourB + 24 - 16;
                    }
                    else//当前月份为三月
                    {
                        if (isLeap(yearB))
                        {
                            yearJ = yearB;
                            monJ = monB - 1;
                            dayJ = 29;
                            hourJ = hourB + 24 - 16;
                        }
                        else
                        {
                            yearJ = yearB;
                            monJ = monB - 1;
                            dayJ = 28;
                            hourJ = hourB + 24 - 16;
                        }
                    }
                }
                else
                {
                    yearJ = yearB;
                    monJ = monB;
                    dayJ = dayB - 1;
                    hourJ = hourB + 24 - 16;
                }
            }
            cout << yearJ << " " << setw(2) << setfill('0') << monJ << " " << setw(2) << setfill('0') << dayJ << " " << setw(2) << setfill('0') << hourJ << " " << setw(2) << setfill('0') << minJ << endl;
        }
    }
}

bool isLeap(int year)
{
    if (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0))
        return true;
    else
        return false;
}