求助！QAQ两个点超了

#include "bits/stdc++.h"
using namespace std;
bool pd(string s)
{
    string t=s;
    reverse(s.begin(),s.end());
    if(t==s) return true;
    return false;
}
int tomath(string s)
{
    int k=0;
    for(int i=0;i<s.size();i++)
    {
        k+=(s[i]-'0');
        if(i!=s.size()-1) k=k*10;
    }
    return k;
}
string tomorrow(string s)
{
    string d="",m="",y="";
    for(int i=6;i<=7;i++) d=d+s[i];
    for(int i=4;i<=5;i++) m+=s[i];
    for(int i=0;i<=3;i++) y+=s[i];
    int day=tomath(d),month=tomath(m),year=tomath(y);
    int da[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
    if(year%400==0 ||(year%4==0 && year%100!=0)) da[2]++;
    if(day==da[month]) 
    {
        day=1;
        if(month==12) 
        {
            month=1;
            year++;
        }
        else month++;
    }
    else day++;
    string g="";
    g=g+char(year/1000+int('0'));
    g=g+char(year/100%10+int('0'));
    g=g+char(year/10%10+int('0'));
    g=g+char(year%10+int('0'));
    g=g+char(month/10+int('0'));
    g=g+char(month%10+int('0'));
    g=g+char(day/10+int('0'));
    g=g+char(day%10+int('0'));
    return g;
}
int main()
{
    string left,right;
    int t=0;
    cin >> left >> right;
    if(pd(right)) t++;
    while(left!=right)
    {
        if(pd(left)) t++;
        left=tomorrow(left);
    }
    printf("%d",t);
    return 0;
}