Calendar성훈이코드

Calendar.h

1. include <stdio.h>

void printCalender(int year, int first); void printFirstTab(int month, int year); int printDays(int month, int year, int leftDays); void print_space(); void print_days(int day); int daysOfMonth(int month, int year); int IsLeafYear(int year);

void printCalender(int year, int first) { int month, leftDays;

for(month = 1 ; month <= 12 ; month++) { printFirstTab(month, year); leftDays = printDays(month, year, first); first = leftDays; } }

void printFirstTab(int month, int year) { switch(month) { case 1: printf(" January %d \n", year); break; case 2: printf(" February %d \n", year); break; case 3: printf(" March %d \n", year); break; case 4: printf(" April %d \n", year); break; case 5: printf(" May %d \n", year); break; case 6: printf(" June %d \n", year); break; case 7: printf(" July %d \n", year); break; case 8: printf(" August %d \n", year); break; case 9: printf(" September %d \n", year); break; case 10: printf(" October %d \n", year); break; case 11: printf(" November %d \n", year); break; case 12: printf(" December %d \n", year); break; } printf("---------------------------------------------------\n"); printf("Mon Tue Wed Thu Fri Sat Sun\n"); }

int printDays(int month, int year, int leftDays) { int cnt = 0; int day = daysOfMonth(month, year);

for(int i = 1 ; i <= leftDays ; i++) { print_space(); //print space leftDays times cnt++; }

for(int nowday = 1 ; nowday <= day ; nowday++) //print day from 1 to day { if(cnt == 7){ printf("\n"); cnt = 0; }

print_days(nowday); cnt++; }

printf("\n\n"); return cnt; }

void print_space() { printf("\t"); }

void print_days(int day) { printf("%d\t", day); }

int daysOfMonth(int month, int year) { int days;

switch(month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: days = 31; break;

case 4: case 6: case 9: case 11: days = 30; break;

case 2: if(IsLeafYear(year) == 0) days = 29; else days = 28; break; }

return days; }

int IsLeafYear(int year) { if(year%4 == 0) return 0; //True

if(year%100 == 0) return 1; //False

if(year%400 == 0) return 0; //True else return 1; //False }

main.cpp

1. include <stdio.h>
2. include "Calender.h"

int main() { int year, first;

printf("Input the year : "); scanf("%d", &year); printf("Input the first day of week in January (0:Mon -- 6:Sun)"); scanf("%d", &first);

printCalender(year, first);

fflush(stdin); getchar(); return 0; }