﻿ C : Table of Roman numeral equivalents to decimal numbers

# C Exercises: Print a table of all the Roman numeral equivalents of the decimal numbers in the range 1 to 50

## C Basic Declarations and Expressions: Exercise-85 with Solution

Write a C program to print a table of all the Roman numeral equivalents of decimal numbers in the range 1 to 50.

Sample Solution:

C Code:

``````#include <stdio.h>

int main()
{
int i, x;

// Print the header of the Roman numeral table
printf("Decimal  Roman\n");
printf("number   numeral\n");
printf("-------------------\n");

// Loop through numbers from 1 to 100
for(i = 1; i<= 100; i++)
{
x = i; // Store current value of i in x
printf("%d        ", x); // Print the decimal number

// Convert decimal number to Roman numeral
if(x == 100) {
printf("C"); // Print Roman numeral for 100
x = 0; // Reset x to 0
}
if(x >= 50) {
printf("L"); // Print Roman numeral for 50
x -= 50; // Subtract 50 from x
}
while(x >= 10) {
printf("X"); // Print Roman numeral for 10
x -= 10; // Subtract 10 from x
}
if(x >= 5) {
if(x % 10 == 9) {
printf("IX"); // Print Roman numeral for 9
x -= 9; // Subtract 9 from x
}
else {
printf("V"); // Print Roman numeral for 5
x -= 5; // Subtract 5 from x
}
}
while(x > 0)
{
if(x % 10 == 4) {
printf("IV"); // Print Roman numeral for 4
x -= 4; // Subtract 4 from x
}
else {
printf("I"); // Print Roman numeral for 1
x -= 1; // Subtract 1 from x
}

}
printf("\n"); // Move to the next line for the next number
}

return 0;
}

``````

Sample Output:

```Decimal  Roman
numbers  numerals
-------------------
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
```

Flowchart:

C programming Code Editor:

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