UVa 12439 February 29

解題：算閏年
Code：

#include<stdio.h>

#include<stdlib.h>

#include<iostream>

#include<algorithm>

#include<string.h>

using namespace std;

int main()

{

    int cas=0;

    string line;

    cin>>cas;

    getline(cin,line);

    for(int cc=0;cc<cas;cc++)

    {

        char date1[100]="",date2[100]="";

        char m1[25]="",m2[25]="",dd1[10]="",dd2[10]="";

        long long int y1=0,y2=0,d1=0,d2=0;

        gets(date1);

        gets(date2);

        sscanf(date1,"%s %s %lld",m1,dd1,&y1);

        sscanf(date2,"%s %s %lld",m2,dd2,&y2);

        if(strlen(dd1)==3) d1=(dd1[0]-'0')*10+(dd1[1]-'0');

        else if(strlen(dd1)==2) d1=dd1[0]-'0';

        if(strlen(dd2)==3) d2=(dd2[0]-'0')*10+(dd2[1]-'0');

        else if(strlen(dd2)==2) d2=dd2[0]-'0';       

        long long int first=0,second=0;

        if(strcmp(m1,"January")==0||strcmp(m1,"February")==0)

        {

            if((y1%4==0 && y1%100!=0)||y1%400==0)

                first=y1/4-y1/100+y1/400-1;

            else

            {

                first=y1/4-y1/100+y1/400;

            }

        }

        else first=y1/4-y1/100+y1/400;

        if(strcmp(m2,"January")==0||(strcmp(m2,"February")==0)&&d2!=29)

        {

            if((y2%4==0 && y2%100!=0)||y2%400==0)

                second=y2/4-y2/100+y2/400-1;

            else second=y2/4-y2/100+y2/400;

        }

        else second=y2/4-y2/100+y2/400;       

        int ans=second-first;

        printf("Case %d: %lld\n",cc+1,ans);

    }

    return 0;

}