做题记录--day40

《算法笔记》3.4小节——入门模拟->日期处理

 B题跟A题类型一样，多组输入初始化刚开始不小心放在外面了，看了好久

这种在发生错误的时候结果会发生变化，单输入又没问题的，考虑一下是不是在新的一轮忘记了初始化

#include<stdio.h>
#include<string.h>
using namespace std;
int month[13][2]={0,0,31,31,28,29,31,31,30,30,31,31,30,30,31,31,31,31,30,30,31,31,30,30,31,31};
bool same(char str1[],char str2[])
{
    int len=strlen(str1);
    if(len!=strlen(str2)) return false;
    for(int i=0;i<len;i++)
        if(str1[i]!=str2[i])
        return false;
    return true;
}
int changemonth(char str[])
{
    if(same(str,"January")) return 1;
    if(same(str,"February")) return 2;
    if(same(str,"March")) return 3;
    if(same(str,"April")) return 4;
    if(same(str,"May")) return 5;
    if(same(str,"June")) return 6;
    if(same(str,"July")) return 7;
    if(same(str,"August")) return 8;
    if(same(str,"September")) return 9;
    if(same(str,"October"))return 10;
    if(same(str,"November"))return 11;
    return 12;
}
void shuchu(int day)
{
    if(day==0) printf("Sunday
");
    else if(day==1) printf("Monday
");
    else if(day==2) printf("Tuesday
");
    else if(day==3) printf("Wednesday
");
    else if(day==4) printf("Thursday
");
    else if(day==5) printf("Friday
");
    else printf("Saturday
");
}
bool isrun(int year)
{
    if((year%4==0 && year%100!=0)||(year%400==0))
        return true;
    return false;
}
int main()
{
    int day1,day2,year1,year2,ans;
    char month1[100],month2[100];
    int num1,num2,data1,data2;
    bool xiaoyu=true;
    while(scanf("%d %s%d",&day2,month2,&year2)!=EOF)
    {
        xiaoyu=true;
        num1=8;year1=2019;day1=17;
        num2=changemonth(month2);
        data1=year1*10000+num1*100+day1;
        data2=year2*10000+num2*100+day2;
        if(data1>data2)
        {
            xiaoyu=false;
            int temp=data2;
            data2=data1;
            data1=temp;
            temp=year2;
            year2=year1;
            year1=temp;
            temp=num1;
            num1=num2;
            num2=temp;
            temp=day1;
            day1=day2;
            day2=temp;
        }
        int sum=0;
        while(year2-year1>1)
        {
            if(data1%10000<=229)
        {
            if(isrun(year1))
            {
                sum+=366;
                if(data1%10000==229)
                {
                    day1=1;
                    num1=3;
                    data1=year1*10000+num1*100+day1;
                }
            }
            else
                sum+=365;
        }
        else
        {
            if(isrun(year1+1))
                sum+=366;
            else
                sum+=365;
        }
        year1++;
        }
        while(year1<year2||num1<num2||day1<day2)
        {
            day1++;
            sum++;
            if(day1>month[num1][isrun(year1)])
            {
                day1=1;
                num1++;
                if(num1>12)
                {
                    num1=1;
                    year1++;
                }
            }
        }
        //printf("%d
",sum);
        //printf("%d
",xiaoyu);
        if(xiaoyu)
            ans=(sum+6)%7;
        else
            ans=(6-sum%7);
        shuchu(ans);
    }
    return 0;
}