Digit Wood

Objective
C++ provides a nice alternative data type to manipulate strings, and the data type is conveniently called string. Some of its widely used features are the following:

Declaration:

            string a = "abc";

Size:

            int len = a.size();

Concatenate two strings:

            string a = "abc";
            string b = "def";
            string c = a + b; // c = "abcdef".

Accessing element:

            string s = "abc";char c0 = s[0]; // c0 = 'a' 
            char c1 = s[1]; // c1 = 'b '    
            char c2 = s[2]; // c2 = 'c'
            s[0] = 'z'; // s = "zbc"

P.S.: We will use cin/cout to read/write a string.

Input Format

You are given two strings, and , separated by a new line. Each string will consist of lower case Latin characters (‘a’-‘z’).

Output Format

In the first line print two space-separated integers, representing the length of and respectively.
In the second line print the string produced by concatenating and ().
In the third line print two strings separated by a space, and . and are the same as and , respectively, except that their first characters are swapped.

Sample Input

    abcd
    ef

Sample Output

    4 2
    abcdef
    ebcd af

Explanation

a = “abcd”
b = “ef”
a+b = “abcdef”
a’ = “ebcd”
b’ = “af”

SOLUTION :

#include <iostream>
#include <string>
using namespace std;

int main() {
    // Complete the program
    string p,q,z;
    getline (cin, p);
    getline (cin, q);
    
    int lengthP = p.length();  
    int lengthQ = q.length();
    
    cout << lengthP << " " << lengthQ << endl;
    
    z = p;
    
    p.append(q);
    cout << p << endl;
    
    char a;
    a = z[0];
    z[0] = q[0];
    q[0] = a;
    
    cout << z << " " << q ;
    
    return 0;
}

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