Problem Name: Strings

Problem Link:

In this HackerRank Functions in C++ programming problem solution,

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 i**th 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, a and b , 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 a and espectively.
    In the second line print the string produced by concatenating a and (a+b)


    In the third line print two strings separated by a space a' and b'. a'  and b' are the same as a and b, respectively, except that their first characters are swapped.

    Sample Input


    Sample Output

    4 2
    ebcd af



Code Examples

#1 Code Example with C++ Programming

Code - C++ Programming

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

int main(void)
    string a, b;
    cin >> a;
    cin >> b;

    cout << a.length() << " " << b.length() << endl;
    cout << a + b << endl;

    swap(a[0], b[0]);
    cout << a << " " << b << endl;

    return 0;

Copy The Code & Try With Live Editor


abcd ef


4 2 abcdef ebcd af


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