Question

(IN C LANGUAGE)

4.33 (Roman-Numeral Equivalent of Decimal Values) Write a program that prints a table of all
the Roman-numeral equivalents of the decimal numbers in the range 1 to 100.

Decimal→→Roman↵
-------→→-----↵
1→→I↵
2→→II↵
3→→III↵
4→→IV↵
5→→V↵
6→→VI↵
7→→VII↵
8→→VIII↵
9→→IX↵
10→→X↵
11→→XI↵
12→→XII↵
13→→XIII↵
14→→XIV↵
15→→XV↵
16→→XVI↵
17→→XVII↵
18→→XVIII↵
19→→XIX↵
20→→XX↵
21→→XXI↵
22→→XXII↵
23→→XXIII↵
24→→XXIV↵
25→→XXV↵
26→→XXVI↵
27→→XXVII↵
28→→XXVIII↵
29→→XXIX↵
30→→XXX↵
31→→XXXI↵
32→→XXXII↵
33→→XXXIII↵
34→→XXXIV↵
35→→XXXV↵
36→→XXXVI↵
37→→XXXVII↵
38→→XXXVIII↵
39→→XXXIX↵
40→→XL↵
41→→XLI↵
42→→XLII↵
43→→XLIII↵
44→→XLIV↵
45→→XLV↵
46→→XLVI↵
47→→XLVII↵
48→→XLVIII↵
49→→XLIX↵
50→→L↵
51→→LI↵
52→→LII↵
53→→LIII↵
54→→LIV↵
55→→LV↵
56→→LVI↵
57→→LVII↵
58→→LVIII↵
59→→LIX↵
60→→LX↵
61→→LXI↵
62→→LXII↵
63→→LXIII↵
64→→LXIV↵
65→→LXV↵
66→→LXVI↵
67→→LXVII↵
68→→LXVIII↵
69→→LXIX↵
70→→LXX↵
71→→LXXI↵
72→→LXXII↵
73→→LXXIII↵
74→→LXXIV↵
75→→LXXV↵
76→→LXXVI↵
77→→LXXVII↵
78→→LXXVIII↵
79→→LXXIX↵
80→→LXXX↵
81→→LXXXI↵
82→→LXXXII↵
83→→LXXXIII↵
84→→LXXXIV↵
85→→LXXXV↵
86→→LXXXVI↵
87→→LXXXVII↵
88→→LXXXVIII↵
89→→LXXXIX↵
90→→XC↵
91→→XCI↵
92→→XCII↵
93→→XCIII↵
94→→XCIV↵
95→→XCV↵
96→→XCVI↵
97→→XCVII↵
98→→XCVIII↵
99→→XCIX↵
100→→C↵

Answer 1

Below is your code: -

#include

#include

#include

char romChars[7] = { 'I','V','X','L','C','D','M'};

int roman(int input, int romCharsNo, char normal)

{

int i;

if (input < 4 && normal == 'y')

for (i = 1; i <= input; i++) printf("%c", romChars[romCharsNo]);

else if (input == 4 && normal == 'y')

printf("%c%c",romChars[romCharsNo], romChars[romCharsNo+1]);

else if (input > 4 && input < 9 && normal == 'y')

{

printf("%c", romChars[romCharsNo+1]);

for (i = 1; i <= input - 5; i++) printf("%c", romChars[romCharsNo]);

}

else if (input == 9 && normal == 'y')

printf("%c%c", romChars[romCharsNo], romChars[romCharsNo + 2]);

else

for (i = 1; i <= input; i++) printf("%c", romChars[romCharsNo]);

}

void printRoman(int number)

{

roman(number / 1000, 6, 'n');

roman((number % 1000) / 100, 4, 'y');

roman((number % 100) / 10, 2, 'y');

roman((number % 10), 0, 'y');

}

int main()

{

int i;

for (i = 1; i <= 100; i++) {

printf("%d ",i);

printRoman(i);

printf("\n");

}

printf("\n\n Press any key to EXIT...");

getch();

puts("");

}

Output

1 I
2 II
3 III
4 IV
5 V
6 VI
7 VII
8 VIII
9 IX
10 X
11 XI
12 XII
13 XIII
14 XIV
15 XV
16 XVI
17 XVII
18 XVIII
19 XIX
20 XX
21 XXI
22 XXII
23 XXIII
24 XXIV
25 XXV
26 XXVI
27 XXVII
28 XXVIII
29 XXIX
30 XXX
31 XXXI
32 XXXII
33 XXXIII
34 XXXIV
35 XXXV
36 XXXVI
37 XXXVII
38 XXXVIII
39 XXXIX
40 XL
41 XLI
42 XLII
43 XLIII
44 XLIV
45 XLV
46 XLVI
47 XLVII
48 XLVIII
49 XLIX
50 L
51 LI
52 LII
53 LIII
54 LIV
55 LV
56 LVI
57 LVII
58 LVIII
59 LIX
60 LX
61 LXI
62 LXII
63 LXIII
64 LXIV
65 LXV
66 LXVI
67 LXVII
68 LXVIII
69 LXIX
70 LXX
71 LXXI
72 LXXII
73 LXXIII
74 LXXIV
75 LXXV
76 LXXVI
77 LXXVII
78 LXXVIII
79 LXXIX
80 LXXX
81 LXXXI
82 LXXXII
83 LXXXIII
84 LXXXIV
85 LXXXV
86 LXXXVI
87 LXXXVII
88 LXXXVIII
89 LXXXIX
90 XC
91 XCI
92 XCII
93 XCIII
94 XCIV
95 XCV
96 XCVI
97 XCVII
98 XCVIII
99 XCIX
100 C

Press any key to EXIT...