Miscellaneous – IV – Decimal to Roman

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//Decimal to Roman

#include <stdio.h>

#include <conio.h>

  void main()

      {

           int i,j,dig,len,k;

           char *ch[][2] = {"I", "V","X","L","C","D","M","Z"};

           char n[5];

           clrscr();

           printf("\n\tEnter a integer no : ");

           gets(n);

           printf("\n\t\tDecimal %s equivalent Roman = ",n);

           len=strlen(n);

           for(i=0;i<len;i++)

              {

                   dig=n[i]-'0';

                   k=len-(i+1);

                   if(dig<=3)

                        {

                            for(j=1;j<=dig;j++)

                                {

                                     printf("%s",ch[k][0]);

                                }

                        }

                   else if(dig<=4)

                        {

                            printf("%s%s",ch[k][0],ch[k][1]);

                        }

                   else if(dig==5)

                        {

                            printf("%s%s",ch[k][1]);

                        }

                   else if(dig<=8)

                        {

                            printf("%s%s",ch[k][1]);

                            for(j=6;j<=dig;j++)

                                {

                                     printf("%s",ch[k][0]);

                                }

                        }

                   else if(dig==9)

                        {

                            printf("%s%s",ch[k][0],ch[k+1][0]);

                        }

              }

           getch();

      }

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