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首先这里的问题在于如何使用逆转的字符串，这里有很多实现的方法：
#include <iostream>#include <string>using namespace std;int main(int argc, char const *argv[]){string s;cin>>s;for (int i = s.size()-1; i >= 0; --i){cout<<s[i];}cout<<endl;return 0;}
#include <iostream>#include <string>#include <algorithm>- using namespace std;
int main(int argc, char const *argv[]){string s;cin>>s;reverse(s.begin(),s.end());cout<<s<<endl;return 0;}
#include <iostream>#include <string>using namespace std;int main(int argc, char const *argv[]){string str="sdfghjkl";string::reverse_iterator rIt = str.rbegin();while (rIt != str.rend()){cout << *rIt;rIt++;}return 0;}
#include <iostream>#include <string>using namespace std;int main(int argc, char const *argv[]){string str;cin>>str;string::reverse_iterator rIt ;for (rIt = str.rbegin(); rIt != str.rend(); ++rIt){cout << *rIt;}return 0;}
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原文地址：http://www.cnblogs.com/clifff/p/5038568.html
