wcj061113 @ 2021-10-14 23:09:34
#include <bits/stdc++.h>
using namespace std;
int d1[4];
int d2[4];
int ans;
int main()
{
int d[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int sum1,sum2;
int day1,day2;
cin>>day1>>day2;
d1[3]=day1%100;
d1[2]=(day1/100)%100;
d1[1]=day1/10000;
d2[3]=day2%100;
d2[2]=(day2/100)%100;
d2[1]=day2/10000;
sum1=d1[3]+d1[2]*100+d1[1]*10000;
sum2=d2[3]+d2[2]*100+d2[1]*10000;
if(sum1==sum2)
{
if(sum1%10==sum1/10000000&&sum1/10%10==sum1/1000000%10&&sum1/100%10==sum1/100000%10&&sum1/10000%10==sum1/1000%10)
{
cout<<1;
return 0;
}
else
{
cout<<ans;
return 0;
}
}
while(sum1!=sum2)
{
if(sum1%10==sum1/10000000&&sum1/10%10==sum1/1000000%10&&sum1/100%10==sum1/100000%10&&sum1/10000%10==sum1/1000%10)
{
ans++;
}
if((d1[1]%4==0||d1[1]%100!=0)&&d1[1]%400==0)
{
d[2]=29;
}
else
{
d[2]=28;
}
sum1=d1[3]+d1[2]*100+d1[1]*10000;
d1[3]++;
if(d1[3]==d[d1[2]]+1)
{
d1[3]=1;
d1[2]++;
}
if(d1[2]==13)
{
d1[2]=1;
d1[1]++;
}
}
cout<<ans;
return 0;
} by ZYXZYX20110608 @ 2021-11-03 21:56:21
#include<bits/stdc++.h>
using namespace std;
int date1,date2,fan_year,tmp_year,year,aim_date,cnt=0;
int days[13]={0,31,29,31,30,31,30,31,31,30,31,30,31};
int main()
{
cin>>date1>>date2;
for(int month=1;month<=12;month++)
{
for(int day=1;day<=days[month];day++)
{
fan_year=month*100+day;
tmp_year=fan_year;
year=0;
for(int i=1;i<=4;i++)
{
year=tmp_year%10+year*10;
tmp_year/=10;
}
aim_date=year*10000+fan_year;
if(aim_date>=date1 && aim_date<=date2)
{
cnt++;
}
}
}
cout<<cnt<<endl;
return 0;
}