UVa 344 - Roman Digititis

	/**
	* Author : Md.Mehadi Hasan Menon.
	* Problem : 344 - Roman Digititis.
	* Status : ACCEPTED.
	* Date : 03.10.2014.
	**/

	#include <stdio.h>

	void getUnits(int n, int ni, int nv, int *nx);
	void getTens(int n, int nx, int nl, int *nc);

	int main()
	{
	int n, i;
	int ni, nv, nx, nl, nc;

	while(scanf("%d", &n) != EOF)
	{
	if(n == 0) break;

	ni = nv = nx = nl = nc = 0;

	for(i = 1; i <= n; i++)
	{
	getUnits( (i % 10), &ni, &nv, &nx);
	getTens( (i / 10), &nx, &nl, &nc);
	}
	printf("%d: %d i, %d v, %d x, %d l, %d c\n", n, ni, nv, nx, nl, nc);
	}

	return 0;
	}
	void getUnits(int n, int ni, int nv, int *nx)
	{
	switch(n)
	{
	case 0: break;
	case 1: *ni += 1; break;
	case 2: *ni += 2; break;
	case 3: *ni += 3; break;
	case 4: ni += 1; nv += 1; break;
	case 5: *nv += 1; break;
	case 6: nv += 1; ni += 1; break;
	case 7: nv += 1; ni += 2; break;
	case 8: nv += 1; ni += 3; break;
	case 9: nx += 1; ni += 1; break;
	}
	}

	void getTens(int n, int nx, int nl, int *nc)
	{
	switch(n)
	{
	case 0: break;
	case 1: *nx += 1; break;
	case 2: *nx += 2; break;
	case 3: *nx += 3; break;
	case 4: nx +=1; nl += 1; break;
	case 5: *nl += 1; break;
	case 6: nl += 1 ; nx += 1; break;
	case 7: nl += 1; nx += 2; break;
	case 8: nl += 1; nx += 3; break;
	case 9: nx += 1; nc += 1; break;
	case 10: *nc += 1; break;
	}
	}

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