题解 | #确定字符互异#

#include <map>
class Different {
public:
    bool checkDifferent(string iniString) {
        // write code here
        map<char,int> stringnum;
        for(auto i:iniString){
            stringnum[i] += 1;
        }
        for(auto j:stringnum){
            if(j.second>1)return false;
        }
        return true;
    }
};