The document summarizes a student's course project presentation on creating a calendar program. The program displays a calendar for any given year, showing month names, days of the week, and dates. It allows the user to input the year to display. The presentation describes the motivation, implementation requirements, algorithms, demonstration of code, inputs, outputs, future improvements, references, and concludes with a thank you.

1. Course Project Presentation
Presented byPresented by Course InformationCourse Information
IKHTIAR KHAN SOHAN
ID: 151-15-8638
Section: L
Course Code: CSE123
Course Title: Programming
& Problem solving
Date of Submission: 09-08-2017
Calendar viewCalendar view

2. Course Project Presentation
INTRODUCTION
My project show you calendar of a year. This
calendar help to known as holyday of the month
and show historical days and other problem
help to people by this calendar.
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3. Course Project Presentation
MOTIVATION
• This program is very useful for us cause
people can known about their important date.
• People know about historical day and holyday.
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4. Course Project Presentation
Implementation Requirements
• This Application size is 31KB and the size of
code is 3KB. So, such amount of memory is
required from hard disk.
• RAM: Minimum 256MB.
• Mouse, Keyboard.
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5. Course Project Presentation
Software Requirements
• Code Blocks
• Windows XP210
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6. Course Project Presentation
Algorithms
• No Algorithm used.
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7. Course Project Presentation
Demonstration
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int width = 80, year;//= 2017;
int cols, lead, gap;
const char *wdays[] = { "Su", "Mo", "Tu", "We", "Th",
"Fr", "Sa" };
struct months {
const char *name;
int days, start_wday, at;
} months[12] = {
{ "January", 31, 0, 0 },
{ "February", 28, 0, 0 },
{ "March", 31, 0, 0 },
{ "April", 30, 0, 0 },
{ "May", 31, 0, 0 },
{ "June", 30, 0, 0 },
{ "July", 31, 0, 0 },
{ "August", 31, 0, 0 },
{ "September", 30, 0, 0 },
{ "October", 31, 0, 0 },
{ "November", 30, 0, 0 },
{ "December", 31, 0, 0 }
};
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void space(int n) { while (n-- > 0) putchar(' '); }
void init_months()
{
int i;
if ((!(year % 4) && (year % 100)) || !(year % 400))
months[1].days = 29;
year--;
months[0].start_wday
= (year * 365 + year/4 - year/100 + year/400 + 1) % 7;
for (i = 1; i < 12; i++)
months[i].start_wday =
(months[i-1].start_wday + months[i-1].days) % 7;
cols = (width + 2) / 22;
while (12 % cols) cols--;
gap = cols - 1 ? (width - 20 * cols) / (cols - 1) : 0;
if (gap > 4) gap = 4;
lead = (width - (20 + gap) * cols + gap + 1) / 2;
year++;
}
void print_row(int row)
{
int c, i, from = row * cols, to = from + cols;

8. Course Project Presentation
space(lead);
for (c = from; c < to; c++) {
i = strlen(months[c].name);
space((20 - i)/2);
printf("%s", months[c].name);
space(20 - i - (20 - i)/2 + ((c == to - 1) ? 0 : gap));
}
putchar('n');
space(lead);
for (c = from; c < to; c++) {
for (i = 0; i < 7; i++)
printf("%s%s", wdays[i], i == 6 ? "" : " ");
if (c < to - 1) space(gap);
else putchar('n');
}
while (1) {
for (c = from; c < to; c++)
if (months[c].at < months[c].days) break;
if (c == to) break;
space(lead);
for (c = from; c < to; c++) {
for (i = 0; i < months[c].start_wday; i++) space(3);
while(i++ < 7 && months[c].at < months[c].days) {
printf("%2d", ++months[c].at);
if (i < 7 || c < to - 1) putchar(' ');
}
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if (i < 7 || c < to - 1) putchar(' ');
}
while (i++ <= 7 && c < to - 1) space(3);
if (c < to - 1) space(gap - 1);
months[c].start_wday = 0;
}
putchar('n');
}
putchar('n');
}
void print_year()
{
int row;
char buf[32];
sprintf("%dn",year);
space((width - strlen(buf)) / 2);
printf("%cnn",buf);
for (row = 0; row * cols < 12; row++)
print_row(row);
}

9. Course Project Presentation
int main(int c, char **v)
{
int i, year_set=0 ,hi;
scanf("%d",&hi);
hi=year;
for (i = 1; i < c; i++) {
if (!strcmp(v[i], "-w")) {
if (++i == c || (width = atoi(v[i])) < 20)
goto bail;
} else if (!year_set) {
if (!sscanf(v[i], "%d", &year) || year <= 0)
year=hi;
year_set = 1;
} else
goto bail;
}
init_months();
print_year();
return 0;
bail: fprintf(stderr, "bad argsnUsage: %s year [-w width (>= 20)]n", v[0]);
exit(1);
}
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10. Course Project Presentation
Input
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Output
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12. Course Project Presentation
Future Prospective
• It’s improvement possible.
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13. Course Project Presentation
References
• Programming hub.
• Stack overflow.
• Google.
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14. Course Project Presentation
Conclusion
We use calendar in our everyday life. This
calendar helps us known as holyday, historical
day and important work by this we prepared for
our some days ago.
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15. Course Project Presentation
THANK YOU
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