#include using namespace std; class Solution{ public: string largestOddNumber(string num){ string rlt = ""; for(int i = num.size() - 1 ; i >= 0 ; i--){ if(num[i]=='1' || num[i] == '3' || num[i] == '5' || num[i] == '7' || num[i] == '9'){ rlt = num.substr(0,i+1); break; } } return rlt; } }; int main(){ Solution sol; cout<