leetcode-daily/cpp/more/0012.cpp

26 lines
615 B
C++

#include <iostream>
#include <string>
#include <vector>
class Solution {
private:
const inline static std::vector<std::vector<std::string>> RN = {
{"", "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"}
};
public:
static std::string intToRoman(int num) {
return RN[3][num / 1000] +
RN[2][(num / 100) % 10] +
RN[1][(num % 100) / 10] +
RN[0][num % 10];
}
};
int main() {
std::cout << Solution::intToRoman(1994);
return 0;
}