華為機試—數字逆序且求個位元乘積，華為逆序

華為機試—數字逆序且求個位元乘積，華為逆序

#include <iostream>#include <string>using namespace std;//逆序string revs(string s){int j = s.length()-1;    int i=0;char t;while(i<j){t = s[i];s[i++]=s[j];s[j--]=t;}return s;}//個位乘積int chen(string s){int ans =1;for(int i=0;i<s.length();i++){ans = ans*(s[i]-'0');}return ans;}int main(){string s;cin>>s;string ss = revs(s);int n=chen(s);cout<<ss<<" "<<n<<endl;return 0;}