Light OJ -- 1414(February 29)

 

Bismillahir Rahmanir Rahim

///Author: Tanvir Ahmmad

///CSE,Islamic University,Bangladesh

#include<iostream>

#include<cstdio>

#include<algorithm>

#include<string>

#include<cstring>

#include<sstream>

#include<cmath>

#include<cstring>

#include<vector>

#include<queue>

#include<map>

#include<set>

#include<stack>

#include<vector>

#include<iterator>

#include <functional> ///sort(arr,arr+n,greater<int>()) for decrement of array

/*every external angle sum=360 degree

  angle find using polygon hand(n) ((n-2)*180)/n*/

///Floor[Log(b)  N] + 1 = the number of digits when any number is represented in base b

using namespace std;

typedef long long ll;

int main()

{

    ll tst,ca=1;

    cin>>tst;

    while(tst--)

    {

        ll year=0,day=0;

        string str1,str2,str3;

        cin>>str1>>str2>>str3;

        for(ll i=0;i<str3.size();i++) year=(year*10)+(str3[i]-'0');

        for(ll i=0;str2[i]!=',';i++) day=(day*10)+(str2[i]-'0');

        if((str1=="January") || (str1=="February" && day<=29)) year=year-1;

        //else year--;

        //cout<<year<<endl;

        ll pre=((year/4)-(year/100)+(year/400));

        cin>>str1>>str2>>str3;

        year=day=0;

        for(ll i=0;i<str3.size();i++) year=(year*10)+(str3[i]-'0');

        for(ll i=0;str2[i]!=',';i++) day=(day*10)+(str2[i]-'0');

        if((str1=="January") || (str1=="February" && day<=28)) year--;

        //cout<<year<<endl;

        ll post=((year/4)-(year/100)+(year/400));

        //cout<<pre<<" "<<post<<endl;

        cout<<"Case "<<ca++<<": ";

        if((post-pre)>=0)cout<<post-pre<<endl;

        else cout<<"0"<<endl;

    }

    return 0;

}

///Alhamdulillah

Problem Link:https://lightoj.com/problem/february-29