code. compile. run. debug. share.
#include <stdio.h>
int val(char c) {
switch(c) {
case 'M': return 1000;
case 'D': return 500;
case 'C': return 100;
case 'L': return 50;
case 'X': return 10;
case 'V': return 5;
case 'I': return 1;
default: return 0;
}
}
int roman(char *s) {
if(*s == 0) return 0;
if(val(s[0]) < val(s[1])) return val(s[1]) - val(s[0]) + roman(&s[2]);
return val(s[0]) + roman(&s[1]);;
}
void printRoman(char *s) {
printf("%s = %d\n", s, roman(s));
}
int main(void) {
printRoman("M");
printRoman("MM");
printRoman("MMM");
printRoman("MMMCM");
printRoman("IV");
printRoman("MCMXCIV");
}
Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
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