littlefrog @ 2019-08-16 11:47:45
#include <bits/stdc++.h>
using namespace std;
int a,b,c,d;
int e,f;
bool runnian(int year) {
if(year%100==0) {
if(year%400==0) {
return 1;
}
return 0;
}//千禧年特判
else {
if(year%4==0) {
return 1;
}
return 0;
}
}
bool judge(int n) {
if(n==1||n==3||n==5||n==7||n==8||n==10||n==12) {
return 1;
}
return 0;
}
bool in(int year,int month,int day) {
if(year<a||year>d) {
return 0;
}
if((month<b||month>e)&&(year<=a&&year>=d)) {
return 0;
}
if((day<c||day>f)&&(month<b||month>e)&&(year<=a&&year>=d)) {
return 0;
}
if(month==0||day==0||year==0) {
return 0;
}
if(month>13) {
return 0;
}
if(day>=32) {
return 0;
}
if(month==2) {
if(day>28&&(!runnian(year))) {
return 0;
}
if(day>29&&(runnian(year))) {
return 0;
}
return 1;
} else {
if(day>31&&judge(month)) {
return 0;
}
if(day>30&&!judge(month)) {
return 0;
}
return 1;
}
}
int main() {
string n,m;
cin>>n>>m;
a = atoi(n.substr(0,4).c_str());
b = atoi(n.substr(4,2).c_str());
c = atoi(n.substr(6,2).c_str());
d = atoi(m.substr(0,4).c_str());
e = atoi(m.substr(4,2).c_str());
f = atoi(m.substr(6,2).c_str());
int year = a;
int month = b;
int day = c;
int ans = 0;
for(int i = year;i<=d;++i) {
int o,p,q;
o = year;
string a;
stringstream ss;
ss<<year;
ss>>a;
char b[101010];
int len = 0;
for(int i = a.length()-1;i>=0;--i) {
b[len] = a[i];
len++;
}
string c(b);
p = atoi(c.substr(0,2).c_str());
q = atoi(c.substr(2,2).c_str());
year++;
if(in(o,p,q)) {
ans++;
}
}
cout<<ans<<endl;
}by gongcharlie @ 2019-08-16 12:06:46
#include<iostream>
#include<cstring>
#include<algorithm>
#include<stdio.h>
using namespace std;
int m[13]={31,28,31,30,31,30,31,31,30,31,30,31};
bool hv(int x){
int a[10]={x/10000000,x/1000000%10,x/100000%10,x/10000%10,x/1000%10,x/100%10,x/10%10,x%10};
// for(int i=0;i<8;i++) printf("%d ",a[i]);
if(a[0]==a[7]&&a[1]==a[6]&&a[2]==a[5]&&a[3]==a[4]) return true;
return false;
}
bool rq(int x){
m[1]=28;
int day=x%100;
int month=x%10000/100;
int year=x/10000;
if(day>31) return false;
if(month>12) return false;
bool flag=false;
int a=year%4;
int b=year%100;
int c=year%400;
if(a==0){
if(b!=0) m[1]=29;
if(b==0&&c==0) m[1]=29;
}
if(m[month-1]<day) return false;
return true;
}
int main()
{
int i,j,n,m,sum=0;
scanf("%d %d",&n,&m);
for(int i=n;i<=m;i++)
{
// cout<<"i:"<<i<<":";
if(hv(i)==true&&rq(i)==true) sum++;
// cout<<endl;
int day=i%100;
if(day>31) i+=68;
}
printf("%d",sum);
return 0;
}
@Taki
by littlefrog @ 2019-08-16 13:12:12