OJ Board

Although my program did all the test inputs correctly, I got a WA. Could someone please print test inputs and their corresponding outputs or check my algorithm and tell me what's wrong with it ?
Thanks in advance

[c]
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

int valid(int d, int m, int y);
char *mname(int month);
char *wday (int d, int m, int y);
int DaysInYear(int year);
int DaysInMonthInYear(int month, int year);
long DaysSinceZ(int day, int month, int year);

int main(void)
{
int day = 1, month = 1, year = 1;

while(1) {
scanf("%d %d %d", &month, &day, &year);
if (!(day && month && year)) break;

if(valid(day, month, year))
printf("%s %i, %i is a %s\n", mname(month), day, year, wday(day, month, year));
else
printf("%i/%i/%i is an invalid date.\n", month, day, year);
}

return 0;
}

int valid(int d, int m, int y)
{
if (m>12) return 0;
if (d>DaysInMonthInYear(m, y)) return 0;

return 1;
}

char *mname(int month)
{
char *c = malloc(10);

switch (month) {
case 1:
strcpy(c, "January");
break;

case 2:
strcpy(c, "February");
break;

case 3:
strcpy(c, "March");
break;

case 4:
strcpy(c, "April");
break;

case 5:
strcpy(c, "May");
break;

case 6:
strcpy(c, "June");
break;

case 7:
strcpy(c, "July");
break;

case 8:
strcpy(c, "August");
break;

case 9:
strcpy(c, "September");
break;

case 10:
strcpy(c, "October");
break;

case 11:
strcpy(c, "November");
break;

case 12:
strcpy(c, "December");
break;
}

return c;
}

char *wday (int d, int m, int y)
{
char *c = malloc(10);
int dd;

dd = ((DaysSinceZ(d, m, y)+1)%7) + 1;

switch (dd) {
case 1:
strcpy(c, "Monday");
break;

case 2:
strcpy(c, "Tuesday");
break;

case 3:
strcpy(c, "Wednesday");
break;

case 4:
strcpy(c, "Thursday");
break;

case 5:
strcpy(c, "Friday");
break;

case 6:
strcpy(c, "Saturday");
break;

case 7:
strcpy(c, "Sunday");
break;
}

return c;
}

int DaysInYear(int year)
{
if ((!(year % 4) && (year % 100)) || !(year % 400))
return 366;
else
return 365;
}

int DaysInMonthInYear(int month, int year)
{
switch(month)
{
case 2:
if ((!(year % 4) && (year % 100)) || !(year % 400))
return 29;
else
return 28;

case 4:
case 6:
case 9:
case 11:
return 30;

case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
return 31;

default:
return 0;
}
}

long DaysSinceZ(int day, int month, int year)
{
int n;
long c = 0;

for (n = 0; n < year; n += 1)
c += DaysInYear(n);

for (n = 1; n < month; n += 1)
c += DaysInMonthInYear(n, year);

c += day;

if (year > 1752) c-=11;
if ((year == 1752) && (month > 9)) c-=11;
if ((year == 1752) && (month == 9) && (day > 2)) c-= 11;

return c;
}
[/c][/c]

P.S. I changed the while break conditions and valid():

while() breaker now reads:
[c]
if (!day && !month && !year) break;
[/c]

here is valid():
[c]
int valid(int d, int m, int y)
{
if (m>12) return 0;
if (d>DaysInMonthInYear(m, y)) return 0;
if ((d<1) || (m<1) || (y<1)) return 0;

return 1;
}
[/c]

As I don't know if your dates are in MMDDYYYY or DDMMYYYY, I just treat as MMDDYYYY.

The following is the output:

January 1, 1 is a Saturday
March 1, 2100 is a Monday
March 1, 2101 is a Tuesday
March 1, 2400 is a Wednesday
March 1, 2401 is a Thursday
March 1, 2300 is a Thursday

Hope can help~

Have you handled the non-existed days?

[cpp]
I am confused about some input.
can anybody help me.
wt will about negative or 0 input like
(MM-DD-YY)
-10 12 1020
12 0 0
and another thing is
wt will be output in
2 28 1
2 29 1?
plz. help
[/cpp]

Thanx!
I got accepted!

What about:
case 2: {month="Februay"; break;}
Please read your code first yourself before posting it here.

Hi guys! Is there any of you know what should these inputs result... ?? I'm confused with the sentence :
' England and its empire (including the United States) didn't switch to the Gregorian calendar system until 1752, when the day following September 2 was declared to be September 14. '
Do the days September 3rd 1752 until September 13th 1752 ever exist in the USA calendar?

Best regards,
Raysa

Output:

raysa wrote:Do the days September 3rd 1752 until September 13th 1752 ever exist in the USA calendar?

These days aren't exist in US calendar.

Ok, I've matched those results upthere. Thank's!
But, unfortunately, I'm still getting WA...

Now, it makes me wonder: what's also the output of: If you don't mind, please give me some 'creative' inputs
to match my results with yours as a comparison...

or maybe I can send you my code via e-mail to be tested. My code is
a little bit long <about 200 lines> so I'm affraid it's a bad idea to
patch it here...

Thank's for your attention !!!

Best regards,
Raysa

OK, more I/O. Input:Output: If you still have troubles with your code you can send it to me via "Private Message". I'll try to check what's wrong.

I have tried so many input using my Pascal program and it works correctly. But I still got WA. Why?
Can anyone answer my question below:
- What is the maximum limit for the year (in the problem, there are only stated the minimum years,that's >=0 ) ? Is the maximum year can be stored in an longint variable ?
- Is year 0 is a leap year ?

And if you don't mind, could you send your exe file of 602 to my e-mail (angga888@indosat.net.id) in order to check input ?

Thanks for helping me.
Regards,
Angga.[/pascal]

Thank's a lot, Ivan Golubev !!!

I've got a miscalculation in the year 2000 and 1800 in your test case...
Now, I've got Accepted (AC). You're really a great helper!!!

Be confirm no input will be less than 1.
so print invalid input in there