C Program to convert a Roman numeral to its decimal equivalent.

Posted on October 12, 2011June 29, 2026 by Sandeepa Nadahalli

Roman numerals to decimal conversion is a classic algorithm problem that tests your ability to identify the subtractive notation rule. Roman numerals use seven symbols (I, V, X, L, C, D, M) and a key rule: when a smaller value symbol appears before a larger one, it is subtracted instead of added. So IV = …

Decimal to Binary in C – Conversion Program with Example

Posted on September 30, 2011June 29, 2026 by Sandeepa Nadahalli

Decimal to binary conversion in C uses the repeated-division-by-2 algorithm: divide the number by 2, record the remainder (0 or 1), then divide again until the quotient reaches 0. Reading the remainders from bottom to top gives the binary equivalent. This conversion is foundational for understanding how computers store integers — every value you work …