leetcode_c++： Integer to Roman(012)
2016-08-04 19:21
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Given an integer, convert it to a roman numeral.
Input is guaranteed to be within the range from 1 to 3999.
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十进制数转换为罗马数制
Input is guaranteed to be within the range from 1 to 3999.
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十进制数转换为罗马数制
class Solution {
public:
string intToRoman(int num) {
string symbol[] = {"M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"};
int value[] = {1000,900,500,400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
string result;
for(int i=0; num!=0; i++){
while(num >= value[i]){
num -= value[i];
result+=symbol[i];
}
}
return result;
}
};
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