Java[koledar]

#include <stdio.h>

void mesecni_koledar (unsigned prvi_dan, unsigned stevilo_dni) {
	printf ("PON\tTOR\tSRE\tCET\tPET\tSOB\tNED\n");

	for (unsigned i = 0; i != prvi_dan; i++)
		printf ("\t");

	unsigned dan = prvi_dan;
	for (unsigned i = 1; i != stevilo_dni + 1; i++) {
		if (dan == 6) {
			printf ("%u\n", i);
			dan = 0;
		}
		else {
			printf ("%u\t", i);
			dan++;
		}
	}

	printf ("\n");
}

enum {PON = 0, TOR, SRE, CET, PET, SOB, NED};

int main (void) {
	mesecni_koledar (SRE, 30);
	return 0;
}

Izpis:

PON	TOR	SRE	CET	PET	SOB	NED
		1	2	3	4	5	
6	7	8	9	10	11	12	
13	14	15	16	17	18	19	
20	21	22	23	24	25	26	
27	28	29	30