I want to know how to invert a string in Dev C++

[beginnercode]

Can anybody show and teach me one?

[Athar]

Assuming you meant "reverse":

string str="Hello!";
cout << string(str.rbegin(),str.rend()) << endl;

http://www.cplusplus.com/articles/36vU7k9E/

[hanst99]

From the fact that he uses Dev C++ I deduct that this is a homework question, and I don't really know if you are allowed to use the clever solution in homeworks Athar.

[Athar]

Probably not, but I wouldn't post a solution that could be handed in as homework without problems anyway.
Certainly not without some effort on OP's part.