计蒜客 -- 整数转换成罗马数字

给定一个整数 num，将整数转换成罗马数字。

如 1,2,3,4,5 对应的罗马数字分别为I，II，III，IV，V等，更详细的说明见此 链接。

输入格式

第一行输入一个整数 num(1 <= num <= 3999)num。

输出格式

输出 num 对应的罗马数字。

样例输入

123
样例输出

CXXIII

---

#include<stdio.h>int main(){    char* c[4][10]={            {"","I","II","III","IV","V","VI","VII","VIII","IX"},            {"","X","XX","XXX","XL","L","LX","LXX","LXXX","XC"},            {"","C","CC","CCC","CD","D","DC","DCC","DCCC","CM"},            {"","M","MM","MMM"}        };    int n;    scanf("%d",&n);    printf("%s",c[3][n/1000]);    printf("%s",c[2][n%1000/100]);    printf("%s",c[1][n%100/10]);    printf("%s",c[0][n%10]);    return 0;}