Strings in c++ : Hacker Rank Solution : Techno Learner

1. 
   
   Techno Learner 

   Strings
   
   

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

•  "abcd"
•  "ef"
•  "abcdef"
•  "ebcd"
•  "af"

 

            Table             Laptop Cleaning Kit       Laptop Stand Desk

Techno Learner

Solution  C++ :

#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;

}

 

            Table             Laptop Cleaning Kit       Laptop Stand Desk