LEETCODE - 1271十六进制魔术数字

Posted 2021-03-17 chiwin

 

 

 

 

 

 

 

 

 

class Solution {
public:
    string toHexspeak(string num) {
        stringstream ss;
        long long inter;
        //转16进制
        string hexret;
        ss << num;
        ss >> inter;
        ss.clear();
        ss << hex << inter;
        ss >> hexret;
        //获取转换关系
        map<char,char> transform = {
            {\'a\',\'A\'},
            {\'b\',\'B\'},
            {\'c\',\'C\'},
            {\'d\',\'D\'},
            {\'e\',\'E\'},
            {\'f\',\'F\'},
            {\'1\',\'I\'},
            {\'0\',\'O\'}
            };
        for(int i = 0; i < hexret.size(); ++i){
            if(transform.count(hexret[i]) == 0){
                return "ERROR";
            }
            hexret[i] = transform[hexret[i]];
        }
        return hexret;
    }
};