Exercise: Reverse a String

Description

Write a program that

• reads a string from standard input [1]

• reverses that string [2]

• outputs the reversed string to standard output [3]

$ ./reverse-string
abc               <--- user input, typed by you
cba               <--- program output

Footnotes

[1]

Use this code snippet to read a string from standard input:

std::string s;
std::cin >> s;

[2]

Iterating over a string (here in forward iteration) is done just like you would iterate over an array.

std::string s("abc");
for (int i=0; i<s.size(); i++) {
    char c = s[i];
    ...
}

[3]

Single characters are appended to a string like so:

std::string s("cb");
s += 'a';