Thread: (C PROGRAM IN VISUAL STUDIO) Calendar Program. 1 small addition.

All i want help with is changing the number value I enter in scanf such as 1 = January, 2 = February, etc. The code works fine as is and everything Just want the month name to display in the header as opposed to the number of the month. Code is below.

Code:

#define _CRT_SECURE_NO_WARNINGS#include <stdio.h>


int getdaycode(int month, int year);
void printheader(int month, int year);
int getndim(int month, int year);


int main(void) 
{
    int  day, month, year, nummonths;
    printf("Enter Month, Year, and number of Months: ");
    if (scanf("%d %d %d", &month, &year, &nummonths) != 3
    ||  year < 0 || month < 1 || month > 12) 
	{
        printf("invalid input\n");
        return 1;
    }


    for (int i = 0; i < nummonths; i++) 
	{
        printheader(month, year);
        int numdays = getndim(month, year);
        int daycode = getdaycode(month, year);


        printf("%*s", daycode * 4, "");   /* print 4 spaces for each skipped day */
        for (day = 1; day <= numdays; day++) 
		{
            printf("%3d", day);
            daycode = (daycode + 1) % 7;
            if (daycode != 0)
                printf(" ");
            else
                printf("\n");
        }
        if (daycode != 0)
            printf("\n");
        printf("\n");


        month = month + 1;
        if (month > 12) 
		{
            month -= 12;
            year += 1;
        }
    }
    return 0;
}


int getdaycode(int month, int year)
{
	int numdays;
	{
		numdays = ((year - 1) * 365 + ((year - 1) / 4) - ((year - 1) / 100) + ((year - 1) / 400)); // how many days including exceptions


		if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0))		//check if leapyear
		{
			if (month == 1)							// January 
				numdays = numdays;
			if (month == 2)							// February 
				numdays = numdays + 31;
			if (month == 3)							// March 
				numdays = numdays + 28 + 31 + 1;
			if (month == 4)							// April 
				numdays = numdays + 31 + 28 + 31 + 1;
			if (month == 5)							// May 
				numdays = numdays + 30 + 31 + 28 + 31 + 1;
			if (month == 6)							// June 
				numdays = numdays + 31 + 30 + 31 + 28 + 31 + 1;
			if (month == 7)							// July 
				numdays = numdays + 30 + 31 + 30 + 31 + 28 + 31 + 1;
			if (month == 8)							// August 
				numdays = numdays + 31 + 30 + 31 + 30 + 31 + 28 + 31 + 1;
			if (month == 9)							// September 
				numdays = numdays + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31 + 1;
			if (month == 10)							// October						
				numdays = numdays + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31 + 1;
			if (month == 11)							// November
				numdays = numdays + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31 + 1;
			if (month == 12)							// December
				numdays = numdays + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31 + 1;
		}
		else
		{
			if (month == 1)							// January 
				numdays = numdays;
			if (month == 2)							// February 
				numdays = numdays + 31;
			if (month == 3)							// March 
				numdays = numdays + 28 + 31;
			if (month == 4)							// April 
				numdays = numdays + 31 + 28 + 31;
			if (month == 5)							// May 
				numdays = numdays + 30 + 31 + 28 + 31;
			if (month == 6)							// June 
				numdays = numdays + 31 + 30 + 31 + 28 + 31;
			if (month == 7)							// July 
				numdays = numdays + 30 + 31 + 30 + 31 + 28 + 31;
			if (month == 8)							// August 
				numdays = numdays + 31 + 30 + 31 + 30 + 31 + 28 + 31;
			if (month == 9)							// September 
				numdays = numdays + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31;
			if (month == 10)							// October						
				numdays = numdays + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31;
			if (month == 11)							// November
				numdays = numdays + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31;
			if (month == 12)							// December
				numdays = numdays + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 + 28 + 31;
		}


	}
	int daycode = (numdays + 1) % 7;
	return daycode;
}


void printheader(int month, int year)
	{
			printf("%14d %1d\n", month, year);
			printf("Sun ");
			printf("Mon ");
			printf("Tue ");
			printf("Wed ");
			printf("Thu ");
			printf("Fri ");
			printf("Sat\n");
		}


int getndim(int month, int year)
{
	int numdays;
	if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0))		//check if leapyear
	{
		if (month == 1)							// January 
			numdays = 31;
		if (month == 2)							// February 
			numdays = 29;
		if (month == 3)							// March 
			numdays = 31;
		if (month == 4)							// April 
			numdays = 30;
		if (month == 5)							// May 
			numdays = 31;
		if (month == 6)							// June 
			numdays = 30;
		if (month == 7)							// July 
			numdays = 31;
		if (month == 8)							// August 
			numdays = 31;
		if (month == 9)							// September 
			numdays = 30;
		if (month == 10)							// October						
			numdays = 31;
		if (month == 11)							// November
			numdays = 30;
		if (month == 12)							// December
			numdays = 31;
	}
	else
	{
		if (month == 1)							// January 
			numdays = 31;
		if (month == 2)							// February 
			numdays = 28;
		if (month == 3)							// March 
			numdays = 31;
		if (month == 4)							// April 
			numdays = 30;
		if (month == 5)							// May 
			numdays = 31;
		if (month == 6)							// June 
			numdays = 30;
		if (month == 7)							// July 
			numdays = 31;
		if (month == 8)							// August 
			numdays = 31;
		if (month == 9)							// September 
			numdays = 30;
		if (month == 10)							// October						
			numdays = 31;
		if (month == 11)							// November
			numdays = 30;
		if (month == 12)							// December
			numdays = 31;
	}
	return numdays;
}