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Update Calender.cpp #1516

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Oct 19, 2024
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Update Calender.cpp #1516

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225 changes: 100 additions & 125 deletions Desktop Application/Basic/C++/Calender/Calender.cpp
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Original file line number Diff line number Diff line change
@@ -1,136 +1,111 @@
#include<iostream>
#include <iostream>
#include <string>
using namespace std;

int main()
{
int a, c, s, i, x, b, l, r, y, m, p;
//Year
std::cout << "Enter the year (from 0 to 1000000000) :";
std::cin >> b;
if (b<0 || b>1000000000)
{
std::cout<<"ERROR::The input year is not in range range.\n"<<"EXIT";
return 1;
}
//Month for which the calender is required
std::cout << "Enter the number of the month(from 1 to 12) :";
std::cin >> a;
if (a<1 || a>12)
{
std::cout<<"ERROR::The input month is not in range range.\n"<<"EXIT";
return 2;
}
//Aplying Julian Calender Algorithm
r = b % 100;
y = (r + (r / 4)) % 7;
//With the help of month number moth name is getting detected
switch (a)
{
case 1:std::cout << "\t\tJanuary" << std::endl;
m = 0;
break;
case 2:std::cout << "\t\tFebruary" << std::endl;
m = 3;
break;
case 3:std::cout << "\t\tMarch" << std::endl;
m = 3;
break;
case 4:std::cout << "\t\tApril" << std::endl;
m = 6;
break;
case 5:std::cout << "\t\tMay" << std::endl;
m = 1;
break;
case 6:std::cout << "\t\tJune" << std::endl;
m = 4;
break;
case 7:std::cout << "\t\tJuly" << std::endl;
m = 6;
break;
case 8:std::cout << "\t\tAugust" << std::endl;
m = 2;
break;
case 9:std::cout << "\t\tSeptember" << std::endl;
m = 5;
break;
case 10:std::cout << "\t\tOctober" << std::endl;
m = 0;
break;
case 11:std::cout << "\t\tNovember" << std::endl;
m = 3;
break;
case 12:std::cout << "\t\tDecember" << std::endl;
m = 5;
break;
// Constants for year limits
const int MIN_YEAR = 0;
const int MAX_YEAR = 1000000000;

// Function to get the month name
string getMonthName(int month) {
switch (month) {
case 1: return "January";
case 2: return "February";
case 3: return "March";
case 4: return "April";
case 5: return "May";
case 6: return "June";
case 7: return "July";
case 8: return "August";
case 9: return "September";
case 10: return "October";
case 11: return "November";
case 12: return "December";
default: return ""; // Should never reach here
}
if (b >= 1700 && b < 1800)
c = 4;
if (b >= 1800 && b < 1900)
c = 2;
if (b >= 1900 && b < 2000)
c = 0;
if (b >= 2000 && b < 2100)
c = 6;
if (b >= 2100 && b < 2200)
c = 4;
if (b >= 2200 && b < 2300)
c = 2;
if (b >= 2300 && b < 2400)
c = 0;
l = 0;
if (b % 4 == 0 && b % 100 != 0 || b % 400 == 0)
{
p = 1;
if (a <= 2)
l = 1;
}

// Function to check if the year is a leap year
bool isLeapYear(int year) {
return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
}

// Function to get the century code based on the year
int getCenturyCode(int year) {
if (year >= 1700 && year < 1800) return 4;
if (year >= 1800 && year < 1900) return 2;
if (year >= 1900 && year < 2000) return 0;
if (year >= 2000 && year < 2100) return 6;
if (year >= 2100 && year < 2200) return 4;
if (year >= 2200 && year < 2300) return 2;
return 0; // Default for years >= 2300
}

// Function to get the month code for day calculation
int getMonthCode(int month) {
switch (month) {
case 1: return 0; // January
case 2: return 3; // February
case 3: return 3; // March
case 4: return 6; // April
case 5: return 1; // May
case 6: return 4; // June
case 7: return 6; // July
case 8: return 2; // August
case 9: return 5; // September
case 10: return 0; // October
case 11: return 3; // November
case 12: return 5; // December
default: return 0; // Should never reach here
}
else
p = 0;
//Displaying the calender
i = (y + m + c + 1 - l) % 7;
std::cout << "Sun\tMon\tTue\tWed\tThu\tFri\tSat\n";
for (x = 1; x <= i; x++)
{
std::cout << "\t";
}

int main() {
int year, month;

// Input for year
cout << "Enter the year (from " << MIN_YEAR << " to " << MAX_YEAR << "): ";
cin >> year;
if (year < MIN_YEAR || year > MAX_YEAR) {
cout << "ERROR: The input year is not in range.\nPlease try again.\n";
return 1;
}
if (a == 1 || a == 3 || a == 5 || a == 7 || a == 8 || a == 10 || a == 12)
{
for (x = 1; x <= 31; x++)
{
if (((x + i - 1) % 7 == 0) && (x != 1))
std::cout << std::endl;
std::cout << x << "\t";
}

// Input for month
cout << "Enter the number of the month (from 1 to 12): ";
cin >> month;
if (month < 1 || month > 12) {
cout << "ERROR: The input month is not in range.\nPlease try again.\n";
return 2;
}
if (a == 4 || a == 6 || a == 9 || a == 11)
{
for (x = 1; x <= 30; x++)
{

if (((x + i - 1) % 7 == 0) && x != 1)
std::cout << std::endl;
std::cout << x << "\t";
// Calculating the day of the week
int centuryCode = getCenturyCode(year);
int yearCode = year % 100; // Last two digits of the year
int leapAdjustment = (isLeapYear(year) && month <= 2) ? 1 : 0; // Adjust if it's a leap year and before March
int dayOfWeek = (yearCode + (yearCode / 4) + getMonthCode(month) + centuryCode - leapAdjustment) % 7;

}
// Displaying the calendar
cout << "\n\t\t" << getMonthName(month) << " " << year << endl;
cout << "Sun\tMon\tTue\tWed\tThu\tFri\tSat\n";

for (int x = 0; x < dayOfWeek; x++) {
cout << "\t"; // Leading spaces for the first week
}
if (a == 2)
{
if (p == 0)
{
for (x = 1; x <= 28; x++)
{
if (((x + i - 1) % 7 == 0) && (x != 1))
std::cout << std::endl;
std::cout << x << "\t";
}
}
else
{
for (x = 1; x <= 29; x++)
{
if (((x + i - 1) % 7 == 0) && (x != 1))
std::cout << std::endl;
std::cout << x << "\t";
}

int daysInMonth;
if (month == 2) {
daysInMonth = isLeapYear(year) ? 29 : 28; // February days
} else {
daysInMonth = (month == 4 || month == 6 || month == 9 || month == 11) ? 30 : 31; // Days in other months
}

for (int day = 1; day <= daysInMonth; day++) {
cout << day << "\t";
if ((day + dayOfWeek) % 7 == 0) {
cout << endl; // New line after Saturday
}
}
cout << endl; // New line at the end
return 0;
}
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